bug 533874, r=cdleary: expose the parser as a JS API
☠☠ backed out by c287fcea6684 ☠ ☠
authorDave Herman <dherman@mozilla.com>
Tue, 15 Jun 2010 13:32:32 -0700
changeset 47443 fecc8ed9e813516cc6d820bd4981c0012732ede9
parent 47442 c254a83a877557cf9e820c2a1b5f1137c551e6ba
child 47444 e0ebe1c3e7ac4531296ff57944677814fb9a3dc7
push id1
push userroot
push dateTue, 26 Apr 2011 22:38:44 +0000
treeherdermozilla-beta@bfdb6e623a36 [default view] [failures only]
perfherder[talos] [build metrics] [platform microbench] (compared to previous push)
reviewerscdleary
bugs533874
milestone1.9.3a5pre
first release with
nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
last release without
nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
bug 533874, r=cdleary: expose the parser as a JS API
js/src/Makefile.in
js/src/js.msg
js/src/jsapi.cpp
js/src/jsast.tbl
js/src/jsparse.h
js/src/jsproto.tbl
js/src/jsreflect.cpp
js/src/jsreflect.h
js/src/shell/js.cpp
js/src/trace-test/lib/array.js
js/src/trace-test/lib/match.js
js/src/trace-test/tests/reflect/data/flapjax.txt
js/src/trace-test/tests/reflect/data/jquery-1.4.2.txt
js/src/trace-test/tests/reflect/parse.js
--- a/js/src/Makefile.in
+++ b/js/src/Makefile.in
@@ -152,16 +152,17 @@ CPPSRCS		= \
 		jsobj.cpp \
 		json.cpp \
 		jsopcode.cpp \
 		jsparse.cpp \
 		jsproxy.cpp \
 		jsprf.cpp \
 		jspropertycache.cpp \
 		jspropertytree.cpp \
+		jsreflect.cpp \
 		jsregexp.cpp \
 		jsscan.cpp \
 		jsscope.cpp \
 		jsscript.cpp \
 		jsstr.cpp \
 		jstask.cpp \
 		jstypedarray.cpp \
 		jsutil.cpp \
@@ -215,16 +216,17 @@ INSTALLED_HEADERS = \
 		jsproxy.h \
 		jsprf.h \
 		jspropertycache.h \
 		jspropertycacheinlines.h \
 		jspropertytree.h \
 		jsproto.tbl \
 		jsprvtd.h \
 		jspubtd.h \
+		jsreflect.h \
 		jsregexp.h \
 		jsscan.h \
 		jsscope.h \
 		jsscript.h \
 		jsscriptinlines.h \
 		jsstaticcheck.h \
 		jsstr.h \
 		jstask.h \
@@ -543,17 +545,17 @@ endif # SOLARIS_SUNPRO_CXX
 # Allow building jsinterp.c with special optimization flags
 ifdef INTERP_OPTIMIZER
 jsinterp.$(OBJ_SUFFIX): MODULE_OPTIMIZE_FLAGS=$(INTERP_OPTIMIZER)
 endif
 
 ifeq ($(OS_ARCH),IRIX)
 ifndef GNU_CC
 _COMPILE_CFLAGS  = $(patsubst -O%,-O1,$(COMPILE_CFLAGS))
-jsapi.o jsxdrapi.o jsarena.o jsarray.o jsatom.o jsemit.o jsfun.o jsinterp.o jsregexp.o jsparse.o jsopcode.o jsscript.o: %.o: %.cpp Makefile.in
+jsapi.o jsxdrapi.o jsarena.o jsarray.o jsatom.o jsemit.o jsfun.o jsinterp.o jsreflect.o jsregexp.o jsparse.o jsopcode.o jsscript.o: %.o: %.cpp Makefile.in
 	$(REPORT_BUILD)
 	@$(MAKE_DEPS_AUTO_CXX)
 	$(CXX) -o $@ -c $(_COMPILE_CFLAGS) $<
 endif
 endif
 
 # An AIX Optimization bug causes PR_dtoa() & JS_dtoa to produce wrong result.
 # This suppresses optimization for this single compilation unit.
--- a/js/src/js.msg
+++ b/js/src/js.msg
@@ -325,8 +325,10 @@ MSG_DEF(JSMSG_DEFINE_ARRAY_LENGTH_UNSUPP
 MSG_DEF(JSMSG_CANT_DEFINE_ARRAY_INDEX,243, 0, JSEXN_TYPEERR, "can't define array index property")
 MSG_DEF(JSMSG_TYPED_ARRAY_BAD_INDEX,  244, 0, JSEXN_ERR, "invalid or out-of-range index")
 MSG_DEF(JSMSG_TYPED_ARRAY_NEGATIVE_ARG, 245, 1, JSEXN_ERR, "argument {0} must be >= 0")
 MSG_DEF(JSMSG_TYPED_ARRAY_BAD_ARGS,   246, 0, JSEXN_ERR, "invalid arguments")
 MSG_DEF(JSMSG_CSP_BLOCKED_FUNCTION,   247, 0, JSEXN_ERR, "call to Function() blocked by CSP")
 MSG_DEF(JSMSG_BAD_GET_SET_FIELD,      248, 1, JSEXN_TYPEERR, "property descriptor's {0} field is neither undefined nor a function")
 MSG_DEF(JSMSG_BAD_PROXY_FIX,          249, 0, JSEXN_TYPEERR, "proxy was fixed while executing the handler")
 MSG_DEF(JSMSG_INVALID_EVAL_SCOPE_ARG, 250, 0, JSEXN_EVALERR, "invalid eval scope argument")
+MSG_DEF(JSMSG_BAD_PARSE_NODE,         251, 2, JSEXN_INTERNALERR, "unimplemented parse node (type {0}, at {1})")
+MSG_DEF(JSMSG_BAD_INTERNAL_ARG,       252, 0, JSEXN_INTERNALERR, "unexpected argument")
--- a/js/src/jsapi.cpp
+++ b/js/src/jsapi.cpp
@@ -1493,16 +1493,20 @@ JS_EnumerateStandardClasses(JSContext *c
 {
     JSRuntime *rt;
     JSAtom *atom;
     uintN i;
 
     CHECK_REQUEST(cx);
     rt = cx->runtime;
 
+#ifdef DEBUG_dherman
+    fprintf(stderr, "JS_EnumerateStandardClasses!\n");
+#endif
+
     /* Check whether we need to bind 'undefined' and define it if so. */
     atom = rt->atomState.typeAtoms[JSTYPE_VOID];
     if (!AlreadyHasOwnProperty(cx, obj, atom) &&
         !obj->defineProperty(cx, ATOM_TO_JSID(atom), JSVAL_VOID,
                              JS_PropertyStub, JS_PropertyStub,
                              JSPROP_PERMANENT | JSPROP_READONLY)) {
         return JS_FALSE;
     }
new file mode 100644
--- /dev/null
+++ b/js/src/jsast.tbl
@@ -0,0 +1,123 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * These must be listed in exactly this order so the AST_xxx fields match up
+ * with their integer definition in jsreflect.cpp.
+ */
+
+/* AST_ERROR = -1 */
+
+ASTDEF(AST_PROGRAM,              0,  "Program")
+
+ASTDEF(AST_IDENTIFIER,           1,  "Identifier")
+ASTDEF(AST_UNOP,                 2,  "UnaryOperator")
+ASTDEF(AST_BINOP,                3,  "BinaryOperator")
+ASTDEF(AST_LOGOP,                4,  "LogicalOperator")
+ASTDEF(AST_AOP,                  5,  "AssignmentOperator")
+ASTDEF(AST_UPDOP,                6,  "UpdateOperator")
+ASTDEF(AST_LITERAL,              7,  "Literal")
+
+ASTDEF(AST_FUNC_DECL,            8,  "FunctionDeclaration")
+ASTDEF(AST_VAR_DECL,             9,  "VariableDeclaration")
+
+ASTDEF(AST_LIST_EXPR,            10, "SequenceExpression")
+ASTDEF(AST_COND_EXPR,            11, "ConditionalExpression")
+ASTDEF(AST_UNARY_EXPR,           12, "UnaryExpression")
+ASTDEF(AST_BINARY_EXPR,          13, "BinaryExpression")
+ASTDEF(AST_ASSIGN_EXPR,          14, "AssignmentExpression")
+ASTDEF(AST_LOGICAL_EXPR,         15, "LogicalExpression")
+ASTDEF(AST_UPDATE_EXPR,          16, "UpdateExpression")
+ASTDEF(AST_NEW_EXPR,             17, "NewExpression")
+ASTDEF(AST_CALL_EXPR,            18, "CallExpression")
+ASTDEF(AST_MEMBER_EXPR,          19, "MemberExpression")
+ASTDEF(AST_FUNC_EXPR,            20, "FunctionExpression")
+ASTDEF(AST_ARRAY_EXPR,           21, "ArrayExpression")
+ASTDEF(AST_OBJECT_EXPR,          22, "ObjectExpression")
+ASTDEF(AST_THIS_EXPR,            23, "ThisExpression")
+ASTDEF(AST_GRAPH_EXPR,           24, "GraphExpression")
+ASTDEF(AST_GRAPH_IDX_EXPR,       25, "GraphIndexExpression")
+ASTDEF(AST_COMP_EXPR,            26, "ComprehensionExpression")
+ASTDEF(AST_GENERATOR_EXPR,       27, "GeneratorExpression")
+ASTDEF(AST_YIELD_EXPR,           28, "YieldExpression")
+
+ASTDEF(AST_EMPTY_STMT,           29, "EmptyStatement")
+ASTDEF(AST_BLOCK_STMT,           30, "BlockStatement")
+ASTDEF(AST_EXPR_STMT,            31, "ExpressionStatement")
+ASTDEF(AST_LAB_STMT,             32, "LabeledStatement")
+ASTDEF(AST_IF_STMT,              33, "IfStatement")
+ASTDEF(AST_SWITCH_STMT,          34, "SwitchStatement")
+ASTDEF(AST_WHILE_STMT,           35, "WhileStatement")
+ASTDEF(AST_DO_STMT,              36, "DoWhileStatement")
+ASTDEF(AST_FOR_STMT,             37, "ForStatement")
+ASTDEF(AST_FOR_IN_STMT,          38, "ForInStatement")
+ASTDEF(AST_BREAK_STMT,           39, "BreakStatement")
+ASTDEF(AST_CONTINUE_STMT,        40, "ContinueStatement")
+ASTDEF(AST_WITH_STMT,            41, "WithStatement")
+ASTDEF(AST_RETURN_STMT,          42, "ReturnStatement")
+ASTDEF(AST_TRY_STMT,             43, "TryStatement")
+ASTDEF(AST_THROW_STMT,           44, "ThrowStatement")
+ASTDEF(AST_DEBUGGER_STMT,        45, "DebuggerStatement")
+
+ASTDEF(AST_CASE,                 46, "SwitchCase")
+ASTDEF(AST_CATCH,                47, "CatchClause")
+ASTDEF(AST_COMP_BLOCK,           48, "ComprehensionBlock")
+
+ASTDEF(AST_ARRAY_PATT,           49, "ArrayPattern")
+ASTDEF(AST_OBJECT_PATT,          50, "ObjectPattern")
+
+ASTDEF(AST_XMLANYNAME,           51, "XMLAnyName")
+ASTDEF(AST_XMLATTR_SEL,          52, "XMLAttributeSelector")
+ASTDEF(AST_XMLESCAPE,            53, "XMLEscape")
+ASTDEF(AST_XMLFILTER,            54, "XMLFilterExpression")
+ASTDEF(AST_XMLDEFAULT,           55, "XMLDefaultDeclaration")
+ASTDEF(AST_XMLQUAL,              56, "XMLQualifiedIdentifier")
+ASTDEF(AST_XMLELEM,              57, "XMLElement")
+ASTDEF(AST_XMLTEXT,              58, "XMLText")
+ASTDEF(AST_XMLLIST,              59, "XMLList")
+ASTDEF(AST_XMLSTART,             60, "XMLStartTag")
+ASTDEF(AST_XMLEND,               61, "XMLEndTag")
+ASTDEF(AST_XMLPOINT,             62, "XMLPointTag")
+ASTDEF(AST_XMLNAME,              63, "XMLName")
+ASTDEF(AST_XMLATTR,              64, "XMLAttribute")
+ASTDEF(AST_XMLCDATA,             65, "XMLCdata")
+ASTDEF(AST_XMLCOMMENT,           66, "XMLComment")
+ASTDEF(AST_XMLPI,                67, "XMLProcessingInstruction")
+
+/* AST_LIMIT = last + 1 */
--- a/js/src/jsparse.h
+++ b/js/src/jsparse.h
@@ -527,16 +527,45 @@ public:
          * Directives must contain no EscapeSequences or LineContinuations.
          * If the string's length in the source code is its length as a value,
          * accounting for the quotes, then it qualifies.
          */
         return (pn_pos.begin.lineno == pn_pos.end.lineno &&
                 pn_pos.begin.index + str->length() + 2 == pn_pos.end.index);
     }
 
+#ifdef JS_HAS_GENERATOR_EXPRS
+    /*
+     * True if this node is a desugared generator expression.
+     */
+    bool isGeneratorExpr() const {
+        if (PN_TYPE(this) == js::TOK_LP) {
+            JSParseNode *callee = this->pn_head;
+            if (PN_TYPE(callee) == js::TOK_FUNCTION) {
+                JSParseNode *body = (PN_TYPE(callee->pn_body) == js::TOK_UPVARS)
+                                    ? callee->pn_body->pn_tree
+                                    : callee->pn_body;
+                if (PN_TYPE(body) == js::TOK_LEXICALSCOPE)
+                    return true;
+            }
+        }
+        return false;
+    }
+
+    JSParseNode *generatorExpr() const {
+        JS_ASSERT(isGeneratorExpr());
+        JSParseNode *callee = this->pn_head;
+        JSParseNode *body = PN_TYPE(callee->pn_body) == js::TOK_UPVARS
+            ? callee->pn_body->pn_tree
+            : callee->pn_body;
+        JS_ASSERT(PN_TYPE(body) == js::TOK_LEXICALSCOPE);
+        return body->pn_expr;
+    }
+#endif
+
     /*
      * Compute a pointer to the last element in a singly-linked list. NB: list
      * must be non-empty for correct PN_LAST usage -- this is asserted!
      */
     JSParseNode *last() const {
         JS_ASSERT(pn_arity == PN_LIST);
         JS_ASSERT(pn_count != 0);
         return (JSParseNode *)((char *)pn_tail - offsetof(JSParseNode, pn_next));
@@ -954,16 +983,21 @@ struct Parser : private js::AutoGCRooter
      * JSContext.tempPool mark. This means you cannot allocate from tempPool
      * and save the pointer beyond the next Parser destructor invocation.
      */
     bool init(const jschar *base, size_t length,
               FILE *fp, const char *filename, uintN lineno);
 
     void setPrincipals(JSPrincipals *prin);
 
+    const char *getFilename()
+    {
+        return tokenStream.getFilename();
+    }
+
     /*
      * Parse a top-level JS script.
      */
     JSParseNode *parse(JSObject *chain);
 
 #if JS_HAS_XML_SUPPORT
     JSParseNode *parseXMLText(JSObject *chain, bool allowList);
 #endif
--- a/js/src/jsproto.tbl
+++ b/js/src/jsproto.tbl
@@ -98,15 +98,17 @@ JS_PROTO(Uint8Array,            29,     
 JS_PROTO(Int16Array,            30,     js_InitTypedArrayClasses)
 JS_PROTO(Uint16Array,           31,     js_InitTypedArrayClasses)
 JS_PROTO(Int32Array,            32,     js_InitTypedArrayClasses)
 JS_PROTO(Uint32Array,           33,     js_InitTypedArrayClasses)
 JS_PROTO(Float32Array,          34,     js_InitTypedArrayClasses)
 JS_PROTO(Float64Array,          35,     js_InitTypedArrayClasses)
 JS_PROTO(Uint8ClampedArray,     36,     js_InitTypedArrayClasses)
 JS_PROTO(Proxy,                 37,     js_InitProxyClass)
+JS_PROTO(Reflect,               38,     js_InitReflectClasses)
+JS_PROTO(ASTNode,               39,     js_InitReflectClasses)
 
 #undef XML_INIT
 #undef NAMESPACE_INIT
 #undef QNAME_INIT
 #undef ANYNAME_INIT
 #undef ATTRIBUTE_INIT
 #undef GENERATOR_INIT
new file mode 100644
--- /dev/null
+++ b/js/src/jsreflect.cpp
@@ -0,0 +1,2925 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sw=4 et tw=99 ft=cpp:
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released
+ * June 12, 2009.
+ *
+ * The Initial Developer of the Original Code is
+ *   the Mozilla Corporation.
+ *
+ * Contributor(s):
+ *   Dave Herman <dherman@mozilla.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * JS reflection package.
+ */
+#include <stdlib.h>
+#include <string.h>     /* for jsparse.h */
+#include "jspubtd.h"
+#include "jsatom.h"
+#include "jsobj.h"
+#include "jsreflect.h"
+#include "jscntxt.h"    /* for jsparse.h */
+#include "jsbit.h"      /* for jsparse.h */
+#include "jsscript.h"   /* for jsparse.h */
+#include "jsinterp.h"   /* for jsparse.h */
+#include "jsparse.h"
+#include "jsregexp.h"
+#include "jsvector.h"
+#include "jsemit.h"
+#include "jsscan.h"
+#include "jsprf.h"
+#include "jsiter.h"
+
+using namespace js;
+
+/*
+ * These macros cover many of the cases where we really miss
+ * exceptions. Because of the do-while trick, these macros
+ * must be terminated with a semicolon and are parsed as a
+ * single statement, and they avoid subtle bugs where uses of
+ * the macros are nested in unbraced if/else-if/else trees.
+ */
+#define RNULL_UNLESS(e)  do { if (!(e)) return NULL; } while (false)
+#define RFALSE_UNLESS(e) do { if (!(e)) return false; } while (false)
+
+
+namespace js {
+
+char const *aopNames[] = {
+    "=",    /* AOP_ASSIGN */
+    "+=",   /* AOP_PLUS */
+    "-=",   /* AOP_MINUS */
+    "*=",   /* AOP_STAR */
+    "/=",   /* AOP_DIV */
+    "%=",   /* AOP_MOD */
+    "<<=",  /* AOP_LSH */
+    ">>=",  /* AOP_RSH */
+    ">>>=", /* AOP_URSH */
+    "|=",   /* AOP_BITOR */
+    "^=",   /* AOP_BITXOR */
+    "&="    /* AOP_BITAND */
+};
+
+char const *binopNames[] = {
+    "==",         /* BINOP_EQ */
+    "!=",         /* BINOP_NE */
+    "===",        /* BINOP_STRICTEQ */
+    "!==",        /* BINOP_STRICTNE */
+    "<",          /* BINOP_LT */
+    "<=",         /* BINOP_LE */
+    ">",          /* BINOP_GT */
+    ">=",         /* BINOP_GE */
+    "<<",         /* BINOP_LSH */
+    ">>",         /* BINOP_RSH */
+    ">>>",        /* BINOP_URSH */
+    "+",          /* BINOP_PLUS */
+    "-",          /* BINOP_MINUS */
+    "*",          /* BINOP_STAR */
+    "/",          /* BINOP_DIV */
+    "%",          /* BINOP_MOD */
+    "|",          /* BINOP_BITOR */
+    "^",          /* BINOP_BITXOR */
+    "&",          /* BINOP_BITAND */
+    "in",         /* BINOP_IN */
+    "instanceof", /* BINOP_INSTANCEOF */
+    "..",         /* BINOP_DBLDOT */
+};
+
+char const *unopNames[] = {
+    "delete",  /* UNOP_DELETE */
+    "-",       /* UNOP_NEG */
+    "+",       /* UNOP_POS */
+    "!",       /* UNOP_NOT */
+    "~",       /* UNOP_BITNOT */
+    "typeof",  /* UNOP_TYPEOF */
+    "void"     /* UNOP_VOID */
+};
+
+char const *nodeTypeNames[] = {
+#define ASTDEF(ast, val, str) str,
+#include "jsast.tbl"
+#undef ASTDEF
+    NULL
+};
+
+typedef Vector<JSObject *, 16, ContextAllocPolicy> NodeList;
+
+/*
+ * Nullability notation:
+ *
+ *     N  ::= ? | ! | _
+ *     NT ::= N | N* | N+
+ *
+ * ?:  Nullable pointer or enum that may be -1.
+ * !:  Non-nullable pointer or enum that may not be -1.
+ * _:  Type that does not include a null case.
+ * N*: NodeList with zero or more elements of nullability N.
+ * N+: NodeList with one or more elements of nullability N.
+ */
+
+typedef struct NodePropertySpec {
+    const char *key;
+    jsval val;
+};
+
+#define PS(key, val) { key, val }
+#define PS_END       PS(NULL, JSVAL_VOID)
+
+/*
+ * (dst: !, begin: ?, end: ?)
+ *
+ * modifies result iff begin and end are non-null
+ * returns result if modified, null if unmodified
+ * infallible
+ */
+static bool
+span(TokenPos *dst, TokenPos *begin, TokenPos *end)
+{
+    if (!begin || !end)
+        return false;
+
+    dst->begin = begin->begin;
+    dst->end = end->end;
+
+    return true;
+}
+
+
+/*
+ * Bug 569487: generalize builder interface
+ *   - use jsval instead of JSObject *
+ *   - use JSVAL_HOLE to represent "no value"
+ */
+
+
+/*
+ * Builder class that constructs JS ASTNode objects.
+ *
+ * The constructor is infallible.
+ *
+ * All methods with pointer or bool return type are fallible.
+ *
+ * All fallible methods set a pending exception in the associated
+ * JSContext before returning.
+ */
+class NodeBuilder
+{
+    JSContext    *cx;   /* ! */
+    char const   *src;  /* ? */
+
+  public:
+    /* (cx: !, src: ?) */
+    NodeBuilder(JSContext *c, char const *s)
+        : cx(c), src(s) {
+    }
+
+  private:
+    /* (s: !) */
+    /* infallible */
+    jsval intern(const char *s) { return STRING_TO_JSVAL(JS_InternString(cx, s)); }
+
+    JSObject *internalError() {
+        JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_BAD_INTERNAL_ARG);
+        return NULL;
+    }
+
+    JSObject *makeObject() { return JS_NewObject(cx, NULL, NULL, NULL); }
+
+    /* (props: !) */
+    JSObject *makeObject(NodePropertySpec *props);
+
+    /* (childName: !, child: _) */
+    JSObject *makeObject(const char *childName, jsval child);
+
+    /* (childName1: !, child1: _, childName2: !, child2: _) */
+    JSObject *makeObject(const char *childName1, jsval child1,
+                         const char *childName2, jsval child2);
+
+
+    /* (elts: ?*) */
+    JSObject *makeArray(NodeList &elts);
+
+    /* (type: _, pos: ?) */
+    JSObject *makeNode(ASTType type, TokenPos *pos);
+
+    /* (type: _, pos: ?, props: !) */
+    JSObject *makeNode(ASTType type, TokenPos *pos, NodePropertySpec props[]);
+
+
+    /* (type: _, pos: ?, childName: !, child: _) */
+    JSObject *makeNode(ASTType type, TokenPos *pos, const char *childName, jsval child)
+    {
+        NodePropertySpec props[] = {
+            PS(childName, child),
+            PS_END
+        };
+        return makeNode(type, pos, props);
+    }
+
+    /* (type _, pos: ?, childName1: !, child1: _, childName2: !, child2: _) */
+    JSObject *makeNode(ASTType type, TokenPos *pos,
+                       const char *childName1, jsval child1,
+                       const char *childName2, jsval child2) {
+        NodePropertySpec props[] = {
+            PS(childName1, child1),
+            PS(childName2, child2),
+            PS_END
+        };
+        return makeNode(type, pos, props);
+    }
+
+    /* (type: _, pos: ?, propName: !, elts: ?*) */
+    JSObject *makeListNode(ASTType type, TokenPos *pos, const char *propName, NodeList &elts) {
+        JSObject *array = makeArray(elts);
+        RNULL_UNLESS(array);
+        return makeNode(type, pos, propName, OBJECT_TO_JSVAL(array));
+    }
+
+    /* (obj: !, name: !, val: _) */
+    bool setObjectProperty(JSObject *obj, const char *name, jsval val) {
+        return JS_DefineProperty(cx, obj, name, val, NULL, NULL, JSPROP_ENUMERATE);
+    }
+
+    /* (obj: !, props: !) */
+    bool setObjectProperties(JSObject *obj, NodePropertySpec *props);
+
+    /* (obj: !, pos: ?) */
+    bool setNodeLoc(JSObject *obj, TokenPos *pos);
+
+    /* (dst: !, foundp: !, node: !) */
+    bool getNodeLoc(TokenPos *dst, bool *foundp, JSObject *node);
+
+    /* (dst: !, foundp: !, loc: !) */
+    bool getTokenPos(TokenPos *dst, bool *foundp, JSObject *loc);
+
+    /* (dst: !, foundp: !, posn: !) */
+    bool getTokenPtr(TokenPtr *dst, bool *foundp, JSObject *posn);
+
+    /* (type: _, opType: _, opToken: _, left: !, right: !, pos: ?) */
+    JSObject *makeBinaryNode(ASTType type, ASTType opType, jsval opToken,
+                             JSObject *left, JSObject *right, TokenPos *pos);
+
+    /* (type: _, opType: _, opToken: _, operands: !+, pos ?) */
+    JSObject *leftAssociate(ASTType type, ASTType opType, jsval opToken, NodeList &operands,
+                            TokenPos *pos);
+
+  public:
+    /*
+     * misc nodes
+     */
+
+    /* (elts: !*, pos: ?) */
+    JSObject *program(NodeList &elts, TokenPos *pos);
+
+    /* (val: _, pos: ?) */
+    JSObject *literal(jsval val, TokenPos *pos);
+
+    /* (name: _, pos: ?) */
+    JSObject *identifier(jsval name, TokenPos *pos);
+
+    /*
+     * (type: _, pos: ?, id: ?, args: !*, body: !, isGenerator: _, isExpression: _)
+     */
+    JSObject *function(ASTType type, TokenPos *pos,
+                       JSObject *id, NodeList &args, JSObject *body,
+                       bool isGenerator, bool isExpression);
+
+    /* (id: !, init: ?, pos: ?) */
+    JSObject *variableDeclarator(JSObject *id, JSObject *init, TokenPos *pos);
+
+    /* (expr: ?, elts: !*, pos: ?) */
+    JSObject *switchCase(JSObject *expr, NodeList &elts, TokenPos *pos);
+
+    /* (var: !, guard: ?, body: !, pos: ?) */
+    JSObject *catchClause(JSObject *var, JSObject *guard, JSObject *body, TokenPos *pos);
+
+    /* (key: !, val: !, kind: !, pos: ?) */
+    JSObject *propertyInitializer(JSObject *key, JSObject *val, PropKind kind, TokenPos *pos);
+
+
+    /*
+     * statements
+     */
+
+    /* (elts: !*, pos: ?) */
+    JSObject *blockStatement(NodeList &elts, TokenPos *pos);
+
+    /* (expr: !, pos: ?) */
+    JSObject *expressionStatement(JSObject *expr, TokenPos *pos);
+
+    /* (pos: ?) */
+    JSObject *emptyStatement(TokenPos *pos);
+
+    /* (test: !, cons: !, alt: ?, pos: ?) */
+    JSObject *ifStatement(JSObject *test, JSObject *cons, JSObject *alt, TokenPos *pos);
+
+    /* (label: ?, pos: ?) */
+    JSObject *breakStatement(JSObject *label, TokenPos *pos);
+
+    /* (label: ?, pos: ?) */
+    JSObject *continueStatement(JSObject *label, TokenPos *pos);
+
+    /* (label: !, pos: ?) */
+    JSObject *labeledStatement(JSObject *label, JSObject *stmt, TokenPos *pos);
+
+    /* (arg: !, pos: ?) */
+    JSObject *throwStatement(JSObject *arg, TokenPos *pos);
+
+    /* (arg: ?, pos: ?) */
+    JSObject *returnStatement(JSObject *arg, TokenPos *pos);
+
+    /* (init: ?, test: ?, update: ?, stmt: !, pos: ?) */
+    JSObject *forStatement(JSObject *init, JSObject *test, JSObject *update,
+                           JSObject *stmt, TokenPos *pos);
+
+    /* (var: !, expr: !, stmt: !, isForEach: _, pos: ?) */
+    JSObject *forInStatement(JSObject *var, JSObject *expr, JSObject *stmt,
+                             bool isForEach, TokenPos *pos);
+
+    /* (expr: !, stmt: !, pos: ?) */
+    JSObject *withStatement(JSObject *expr, JSObject *stmt, TokenPos *pos);
+
+    /* (test: !, stmt: !, pos: ?) */
+    JSObject *whileStatement(JSObject *test, JSObject *stmt, TokenPos *pos);
+
+    /* (stmt: !, test: !, pos: ?) */
+    JSObject *doWhileStatement(JSObject *stmt, JSObject *test, TokenPos *pos);
+
+    /* (disc: !, elts: !*, lexical: _, pos: ?) */
+    JSObject *switchStatement(JSObject *disc, NodeList &elts, bool lexical, TokenPos *pos);
+
+    /* (body: !, catches: !*, finally: ?, pos: ?) */
+    JSObject *tryStatement(JSObject *body, NodeList &catches, JSObject *finally, TokenPos *pos);
+
+    /* (pos: ?) */
+    JSObject *debuggerStatement(TokenPos *pos);
+
+    /*
+     * expressions
+     */
+
+    /* (op: !, operands: !+, pos: ?) */
+    JSObject *binaryExpression(BinaryOperator op, NodeList &operands, TokenPos *pos);
+
+    /* (op: !, expr: !, pos: ?) */
+    JSObject *unaryExpression(UnaryOperator op, JSObject *expr, TokenPos *pos);
+
+    /* (op: !, lhs: !, rhs: !, pos: ?) */
+    JSObject *assignmentExpression(AssignmentOperator op, JSObject *lhs, JSObject *rhs,
+                                   TokenPos *pos);
+
+    /* (expr: ?, incr: _, prefix: _, pos: ?) */
+    JSObject *updateExpression(JSObject *expr, bool incr, bool prefix, TokenPos *pos);
+
+    /* (lor: _, operands: !+, pos: ?) */
+    JSObject *logicalExpression(bool lor, NodeList &operands, TokenPos *pos);
+
+    /* (test: !, cons: !, alt: !, pos: ?) */
+    JSObject *conditionalExpression(JSObject *test, JSObject *cons, JSObject *alt, TokenPos *pos);
+
+    /* (elts: !+, pos: ?) */
+    JSObject *sequenceExpression(NodeList &elts, TokenPos *pos);
+
+    /* (callee: !, args: !*, pos: ?) */
+    JSObject *newExpression(JSObject *callee, NodeList &args, TokenPos *pos);
+
+    /* (callee: !, args: !*, pos: ?) */
+    JSObject *callExpression(JSObject *callee, NodeList &args, TokenPos *pos);
+
+    /* (computed: _, expr: !, member: !, pos: ?) */
+    JSObject *memberExpression(bool computed, JSObject *expr, JSObject *member, TokenPos *pos);
+
+    /* (elts: ?*, pos: ?) */
+    JSObject *arrayExpression(NodeList &elts, TokenPos *pos);
+
+    /* (elts: !, pos: ?) */
+    JSObject *objectExpression(NodeList &elts, TokenPos *pos);
+
+    /* (arg: ?, pos: ?) */
+    JSObject *yieldExpression(JSObject *arg, TokenPos *pos);
+
+    /* (patt: !, src: !, isForEach: _, pos: ?) */
+    JSObject *comprehensionBlock(JSObject *patt, JSObject *src, bool isForEach, TokenPos *pos);
+
+    /* (body: !, blocks: !+, filter: ?, pos: ?) */
+    JSObject *comprehensionExpression(JSObject *body, NodeList &blocks, JSObject *filter,
+                                      TokenPos *pos);
+
+    /* (body: !, blocks: !+, filter: ?, pos: ?) */
+    JSObject *generatorExpression(JSObject *body, NodeList &blocks, JSObject *filter,
+                                  TokenPos *pos);
+
+    /* (idx: _, expr: !, pos: ?) */
+    JSObject *graphExpression(jsint idx, JSObject *expr, TokenPos *pos);
+
+    /* (idx: _, pos: ?) */
+    JSObject *graphIndexExpression(jsint idx, TokenPos *pos);
+
+    /*
+     * declarations
+     */
+
+    /* (elts: !+, kind: !, pos: ?) */
+    JSObject *variableDeclaration(NodeList &elts, VarDeclKind kind, TokenPos *pos);
+
+
+    /*
+     * patterns
+     */
+
+    /* (elts: ?*, pos: ?) */
+    JSObject *arrayPattern(NodeList &elts, TokenPos *pos);
+
+    /* (elts: !*, pos: ?) */
+    JSObject *objectPattern(NodeList &elts, TokenPos *pos);
+
+    /* (key: !, patt: !, pos: ?) */
+    JSObject *propertyPattern(JSObject *key, JSObject *patt, TokenPos *pos);
+
+
+    /*
+     * xml
+     */
+
+    /* (pos: ?) */
+    JSObject *xmlAnyName(TokenPos *pos);
+
+    /* (expr: !, pos: ?) */
+    JSObject *xmlEscapeExpression(JSObject *expr, TokenPos *pos);
+
+    /* (ns: !, pos: ?) */
+    JSObject *xmlDefaultNamespace(JSObject *ns, TokenPos *pos);
+
+    /* (left: !, right: !, pos: ?) */
+    JSObject *xmlFilterExpression(JSObject *left, JSObject *right, TokenPos *pos);
+
+    /* (expr: !, pos: ?) */
+    JSObject *xmlAttributeSelector(JSObject *expr, TokenPos *pos);
+
+    /* (left: !, right: !, computed: _, pos: ?) */
+    JSObject *xmlQualifiedIdentifier(JSObject *left, JSObject *right, bool computed,
+                                     TokenPos *pos);
+
+    /* (elts: !+, pos: ?) */
+    JSObject *xmlElement(NodeList &elts, TokenPos *pos);
+
+    /* (text: _, pos: ?) */
+    JSObject *xmlText(jsval text, TokenPos *pos);
+
+    /* (elts: !+, pos: ?) */
+    JSObject *xmlList(NodeList &elts, TokenPos *pos);
+
+    /* (elts: !+, pos: ?) */
+    JSObject *xmlStartTag(NodeList &elts, TokenPos *pos);
+
+    /* (elts: !+, pos: ?) */
+    JSObject *xmlEndTag(NodeList &elts, TokenPos *pos);
+
+    /* (elts: !+, pos: ?) */
+    JSObject *xmlPointTag(NodeList &elts, TokenPos *pos);
+
+    /* (text: _, pos: ?) */
+    JSObject *xmlName(jsval text, TokenPos *pos);
+
+    /* (elts: !+, pos: ?) */
+    JSObject *xmlName(NodeList &elts, TokenPos *pos);
+
+    /* (text: _, pos: ?) */
+    JSObject *xmlAttribute(jsval text, TokenPos *pos);
+
+    /* (text: _, pos: ?) */
+    JSObject *xmlCdata(jsval text, TokenPos *pos);
+
+    /* (text: _, pos: ?) */
+    JSObject *xmlComment(jsval text, TokenPos *pos);
+
+    /* (target: _, pos: ?) */
+    JSObject *xmlPI(jsval target, TokenPos *pos);
+
+    /* (target: _, content: _, pos: ?) */
+    JSObject *xmlPI(jsval target, jsval content, TokenPos *pos);
+
+};
+
+JSObject *
+NodeBuilder::makeObject(NodePropertySpec *props)
+{
+    JSObject *obj = makeObject();
+    RNULL_UNLESS(obj);
+    RNULL_UNLESS(setObjectProperties(obj, props));
+    return obj;
+}
+
+JSObject *
+NodeBuilder::makeObject(const char *childName, jsval child)
+{
+    NodePropertySpec props[] = {
+        PS(childName, child),
+        PS_END
+    };
+    return makeObject(props);
+}
+
+JSObject *
+NodeBuilder::makeObject(const char *childName1, jsval child1,
+                        const char *childName2, jsval child2)
+{
+    NodePropertySpec props[] = {
+        PS(childName1, child1),
+        PS(childName2, child2),
+        PS_END
+    };
+    return makeObject(props);
+}
+
+bool
+NodeBuilder::setObjectProperties(JSObject *obj, NodePropertySpec *props)
+{
+    for (size_t i = 0; props[i].key; i++)
+        RFALSE_UNLESS(setObjectProperty(obj, props[i].key, props[i].val));
+
+    return true;
+}
+
+JSObject *
+NodeBuilder::makeNode(ASTType type, TokenPos *pos)
+{
+    if (type <= AST_ERROR || type >= AST_LIMIT)
+        return internalError();
+
+    JSObject *node = JS_NewObject(cx, &js_ASTNodeClass, NULL, NULL);
+    RNULL_UNLESS(node);
+    RNULL_UNLESS(setNodeLoc(node, pos));
+    RNULL_UNLESS(setObjectProperty(node, "type", intern(nodeTypeNames[type])));
+    return node;
+}
+
+JSObject *
+NodeBuilder::makeNode(ASTType type, TokenPos *pos, NodePropertySpec props[])
+{
+    JSObject *node = makeNode(type, pos);
+    RNULL_UNLESS(node);
+    for (size_t i = 0; props[i].key; i++)
+        RNULL_UNLESS(setObjectProperty(node, props[i].key, props[i].val));
+    return node;
+}
+
+JSObject *
+NodeBuilder::makeArray(NodeList &elts)
+{
+    JSObject *array = JS_NewArrayObject(cx, 0, NULL);
+    RNULL_UNLESS(array);
+
+    size_t len = elts.length();
+    for (size_t i = 0; i < len; i++) {
+        jsval val = OBJECT_TO_JSVAL(elts[i]);
+        RNULL_UNLESS(JS_SetElement(cx, array, i, &val));
+    }
+
+    return array;
+}
+
+bool
+NodeBuilder::setNodeLoc(JSObject *node, TokenPos *pos)
+{
+    if (!pos)
+        return setObjectProperty(node, "loc", JSVAL_NULL);
+
+    jsval line, column;
+
+    RFALSE_UNLESS(JS_NewNumberValue(cx, (jsdouble)pos->begin.lineno, &line));
+    RFALSE_UNLESS(JS_NewNumberValue(cx, (jsdouble)pos->begin.index, &column));
+    JSObject *start = makeObject("line", line, "column", column);
+    RFALSE_UNLESS(start);
+
+    RFALSE_UNLESS(JS_NewNumberValue(cx, (jsdouble)pos->end.lineno, &line));
+    RFALSE_UNLESS(JS_NewNumberValue(cx, (jsdouble)pos->end.index, &column));
+    JSObject *end = makeObject("line", line, "column", column);
+    RFALSE_UNLESS(end);
+
+    JSObject *loc = makeObject("start", OBJECT_TO_JSVAL(start),
+                               "end", OBJECT_TO_JSVAL(end));
+    RFALSE_UNLESS(loc);
+
+    return setObjectProperty(node, "loc", OBJECT_TO_JSVAL(loc));
+}
+
+JSObject *
+NodeBuilder::program(NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+    return makeNode(AST_PROGRAM, pos, "body", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::blockStatement(NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_BLOCK_STMT, pos, "body", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::expressionStatement(JSObject *expr, TokenPos *pos)
+{
+    return makeNode(AST_EXPR_STMT, pos, "expression", OBJECT_TO_JSVAL(expr));
+}
+
+JSObject *
+NodeBuilder::emptyStatement(TokenPos *pos)
+{
+    return makeNode(AST_EMPTY_STMT, pos);
+}
+
+JSObject *
+NodeBuilder::ifStatement(JSObject *test, JSObject *cons, JSObject *alt, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("test", OBJECT_TO_JSVAL(test)),
+        PS("consequent", OBJECT_TO_JSVAL(cons)),
+        PS("alternate", alt ? OBJECT_TO_JSVAL(alt) : JSVAL_NULL),
+        PS_END
+    };
+    return makeNode(AST_IF_STMT, pos, props);
+}
+
+JSObject *
+NodeBuilder::breakStatement(JSObject *label, TokenPos *pos)
+{
+    return makeNode(AST_BREAK_STMT, pos, "label", label ? OBJECT_TO_JSVAL(label) : JSVAL_NULL);
+}
+
+JSObject *
+NodeBuilder::continueStatement(JSObject *label, TokenPos *pos)
+{
+    return makeNode(AST_CONTINUE_STMT, pos, "label", label ? OBJECT_TO_JSVAL(label) : JSVAL_NULL);
+}
+
+JSObject *
+NodeBuilder::labeledStatement(JSObject *label, JSObject *stmt, TokenPos *pos)
+{
+    return makeNode(AST_LAB_STMT, pos,
+                    "label", OBJECT_TO_JSVAL(label),
+                    "body", OBJECT_TO_JSVAL(stmt));
+}
+
+JSObject *
+NodeBuilder::throwStatement(JSObject *arg, TokenPos *pos)
+{
+    return makeNode(AST_THROW_STMT, pos, "argument", OBJECT_TO_JSVAL(arg));
+}
+
+JSObject *
+NodeBuilder::returnStatement(JSObject *arg, TokenPos *pos)
+{
+    return makeNode(AST_RETURN_STMT, pos, "argument", arg ? OBJECT_TO_JSVAL(arg) : JSVAL_NULL);
+}
+
+JSObject *
+NodeBuilder::forStatement(JSObject *init, JSObject *test, JSObject *update,
+                          JSObject *stmt, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("init", init ? OBJECT_TO_JSVAL(init) : JSVAL_NULL),
+        PS("test", test ? OBJECT_TO_JSVAL(test) : JSVAL_NULL),
+        PS("update", update ? OBJECT_TO_JSVAL(update) : JSVAL_NULL),
+        PS("body", OBJECT_TO_JSVAL(stmt)),
+        PS_END
+    };
+    return makeNode(AST_FOR_STMT, pos, props);
+}
+
+JSObject *
+NodeBuilder::forInStatement(JSObject *var, JSObject *expr, JSObject *stmt,
+                            bool isForEach, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("left", OBJECT_TO_JSVAL(var)),
+        PS("right", OBJECT_TO_JSVAL(expr)),
+        PS("body", OBJECT_TO_JSVAL(stmt)),
+        PS("each", BOOLEAN_TO_JSVAL(isForEach)),
+        PS_END
+    };
+    return makeNode(AST_FOR_IN_STMT, pos, props);
+}
+
+JSObject *
+NodeBuilder::withStatement(JSObject *expr, JSObject *stmt, TokenPos *pos)
+{
+    return makeNode(AST_WITH_STMT, pos,
+                    "object", OBJECT_TO_JSVAL(expr),
+                    "body", OBJECT_TO_JSVAL(stmt));
+}
+
+JSObject *
+NodeBuilder::whileStatement(JSObject *test, JSObject *stmt, TokenPos *pos)
+{
+    return makeNode(AST_WHILE_STMT, pos,
+                    "test", OBJECT_TO_JSVAL(test),
+                    "body", OBJECT_TO_JSVAL(stmt));
+}
+
+JSObject *
+NodeBuilder::doWhileStatement(JSObject *stmt, JSObject *test, TokenPos *pos)
+{
+    return makeNode(AST_DO_STMT, pos,
+                    "body", OBJECT_TO_JSVAL(stmt),
+                    "test", OBJECT_TO_JSVAL(test));
+}
+
+JSObject *
+NodeBuilder::switchStatement(JSObject *disc, NodeList &elts, bool lexical, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+
+    JSObject *meta = makeObject("lexical", BOOLEAN_TO_JSVAL(lexical));
+    RNULL_UNLESS(meta);
+
+    NodePropertySpec props[] = {
+        PS("discriminant", OBJECT_TO_JSVAL(disc)),
+        PS("cases", OBJECT_TO_JSVAL(array)),
+        PS("meta", OBJECT_TO_JSVAL(meta)),
+        PS_END
+    };
+    return makeNode(AST_SWITCH_STMT, pos, props);
+}
+
+JSObject *
+NodeBuilder::tryStatement(JSObject *body, NodeList &catches, JSObject *finally, TokenPos *pos)
+{
+    jsval handler;
+    if (catches.empty()) {
+        handler = JSVAL_NULL;
+    } else if (catches.length() == 1) {
+        handler = OBJECT_TO_JSVAL(catches[0]);
+    } else {
+        JSObject *array = makeArray(catches);
+        RNULL_UNLESS(array);
+        handler = OBJECT_TO_JSVAL(array);
+    }
+
+    NodePropertySpec props[] = {
+        PS("block", OBJECT_TO_JSVAL(body)),
+        PS("handler", handler),
+        PS("finalizer", finally ? OBJECT_TO_JSVAL(finally) : JSVAL_NULL),
+        PS_END
+    };
+    return makeNode(AST_TRY_STMT, pos, props);
+}
+
+JSObject *
+NodeBuilder::debuggerStatement(TokenPos *pos)
+{
+    return makeNode(AST_DEBUGGER_STMT, pos);
+}
+
+JSObject *
+NodeBuilder::binaryExpression(BinaryOperator op, NodeList &operands, TokenPos *pos)
+{
+    if (op <= BINOP_ERR || op >= BINOP_LIMIT)
+        return internalError();
+
+    return leftAssociate(AST_BINARY_EXPR, AST_BINOP, intern(binopNames[op]), operands, pos);
+}
+
+JSObject *
+NodeBuilder::unaryExpression(UnaryOperator op, JSObject *expr, TokenPos *pos)
+{
+    if (op <= UNOP_ERR || op >= UNOP_LIMIT)
+        return internalError();
+
+    JSObject *opNode = makeNode(AST_UNOP, NULL, "token", intern(unopNames[op]));
+    RNULL_UNLESS(opNode);
+
+    NodePropertySpec props[] = {
+        PS("operator", OBJECT_TO_JSVAL(opNode)),
+        PS("argument", OBJECT_TO_JSVAL(expr)),
+        PS("prefix", JSVAL_TRUE),
+        PS_END
+    };
+    return makeNode(AST_UNARY_EXPR, pos, props);
+}
+
+JSObject *
+NodeBuilder::assignmentExpression(AssignmentOperator op, JSObject *lhs, JSObject *rhs,
+                                  TokenPos *pos)
+{
+    if (op <= AOP_ERR || op >= AOP_LIMIT)
+        return internalError();
+
+    JSObject *opNode = makeNode(AST_AOP, NULL, "token", intern(aopNames[op]));
+    RNULL_UNLESS(opNode);
+
+    NodePropertySpec props[] = {
+        PS("operator", OBJECT_TO_JSVAL(opNode)),
+        PS("left", OBJECT_TO_JSVAL(lhs)),
+        PS("right", OBJECT_TO_JSVAL(rhs)),
+        PS_END
+    };
+    return makeNode(AST_ASSIGN_EXPR, pos, props);
+}
+
+JSObject *
+NodeBuilder::updateExpression(JSObject *expr, bool incr, bool prefix, TokenPos *pos)
+{
+    JSObject *opNode = makeNode(AST_UPDOP, NULL, "token", intern(incr ? "++" : "--"));
+    RNULL_UNLESS(opNode);
+
+    NodePropertySpec props[] = {
+        PS("operator", OBJECT_TO_JSVAL(opNode)),
+        PS("argument", OBJECT_TO_JSVAL(expr)),
+        PS("prefix", BOOLEAN_TO_JSVAL(prefix)),
+        PS_END
+    };
+    return makeNode(AST_UPDATE_EXPR, pos, props);
+}
+
+bool
+NodeBuilder::getTokenPtr(TokenPtr *dst, bool *foundp, JSObject *posn)
+{
+    JSBool has;
+
+    RFALSE_UNLESS(JS_HasProperty(cx, posn, "line", &has));
+    if (!has) {
+        *foundp = false;
+        return true;
+    }
+
+    RFALSE_UNLESS(JS_HasProperty(cx, posn, "column", &has));
+    if (!has) {
+        *foundp = false;
+        return true;
+    }
+
+    jsval linev, columnv;
+    RFALSE_UNLESS(JS_GetProperty(cx, posn, "line", &linev));
+    RFALSE_UNLESS(JS_GetProperty(cx, posn, "column", &columnv));
+
+    if (!JSVAL_IS_NUMBER(linev) || !JSVAL_IS_NUMBER(columnv)) {
+        *foundp = false;
+        return true;
+    }
+
+    uint32 line, column;
+    RFALSE_UNLESS(JS_ValueToECMAUint32(cx, linev, &line));
+    RFALSE_UNLESS(JS_ValueToECMAUint32(cx, columnv, &column));
+
+    dst->lineno = line;
+    dst->index = column;
+
+    *foundp = true;
+    return true;
+}
+
+bool
+NodeBuilder::getTokenPos(TokenPos *dst, bool *foundp, JSObject *loc)
+{
+    JSBool has;
+
+    RFALSE_UNLESS(JS_HasProperty(cx, loc, "start", &has));
+    if (!has) {
+        *foundp = false;
+        return true;
+    }
+
+    RFALSE_UNLESS(JS_HasProperty(cx, loc, "end", &has));
+    if (!has) {
+        *foundp = false;
+        return true;
+    }
+
+    jsval startv, endv;
+    RFALSE_UNLESS(JS_GetProperty(cx, loc, "start", &startv));
+    RFALSE_UNLESS(JS_GetProperty(cx, loc, "end", &endv));
+
+    if (!JSVAL_IS_OBJECT(startv) || !JSVAL_IS_OBJECT(endv)) {
+        *foundp = false;
+        return true;
+    }
+
+    TokenPtr begin, end;
+    RFALSE_UNLESS(getTokenPtr(&begin, foundp, JSVAL_TO_OBJECT(startv)));
+    if (!(*foundp))
+        return true;
+
+    RFALSE_UNLESS(getTokenPtr(&end, foundp, JSVAL_TO_OBJECT(endv)));
+    if (!(*foundp))
+        return true;
+
+    dst->begin = begin;
+    dst->end = end;
+
+    *foundp = true;
+    return true;
+}
+
+bool
+NodeBuilder::getNodeLoc(TokenPos *dst, bool *foundp, JSObject *node)
+{
+    JSBool has;
+    RFALSE_UNLESS(JS_HasProperty(cx, node, "loc", &has));
+    if (!has) {
+        *foundp = false;
+        return true;
+    }
+
+    jsval loc;
+    RFALSE_UNLESS(JS_GetProperty(cx, node, "loc", &loc));
+
+    if (!JSVAL_IS_OBJECT(loc)) {
+        *foundp = false;
+        return true;
+    }
+
+    return getTokenPos(dst, foundp, JSVAL_TO_OBJECT(loc));
+}
+
+JSObject *
+NodeBuilder::makeBinaryNode(ASTType type, ASTType opType, jsval opToken,
+                            JSObject *left, JSObject *right, TokenPos *pos)
+{
+    JSObject *opNode = makeNode(opType, NULL, "token", opToken);
+    RNULL_UNLESS(opNode);
+
+    NodePropertySpec props[] = {
+        PS("operator", OBJECT_TO_JSVAL(opNode)),
+        PS("left", OBJECT_TO_JSVAL(left)),
+        PS("right", OBJECT_TO_JSVAL(right)),
+        PS_END
+    };
+
+    TokenPos leftpos, subpos;
+    bool found;
+
+    RNULL_UNLESS(getNodeLoc(&leftpos, &found, left));
+    if (found)
+        found = span(&subpos, &leftpos, pos);
+
+    return makeNode(type, found ? &subpos : pos, props);
+}
+
+JSObject *
+NodeBuilder::leftAssociate(ASTType type, ASTType opType, jsval opToken, NodeList &operands,
+                           TokenPos *pos)
+{
+    size_t len = operands.length();
+
+    JS_ASSERT(len >= 1);
+    if (len == 1)
+        return operands[0];
+
+    JS_ASSERT(len >= 2);
+
+    JSObject *result = operands[len - 1];
+    size_t i = len - 2;
+
+    do {
+        result = makeBinaryNode(type, opType, opToken, operands[i], result, pos);
+        RNULL_UNLESS(result);
+    } while (i-- != 0);
+
+    return result;
+}
+
+JSObject *
+NodeBuilder::logicalExpression(bool lor, NodeList &operands, TokenPos *pos)
+{
+    return leftAssociate(AST_LOGICAL_EXPR, AST_LOGOP, intern(lor ? "||" : "&&"), operands, pos);
+}
+
+JSObject *
+NodeBuilder::conditionalExpression(JSObject *test, JSObject *cons, JSObject *alt, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("test", OBJECT_TO_JSVAL(test)),
+        PS("consequent", OBJECT_TO_JSVAL(cons)),
+        PS("alternate", OBJECT_TO_JSVAL(alt)),
+        PS_END
+    };
+    return makeNode(AST_COND_EXPR, pos, props);
+}
+
+JSObject *
+NodeBuilder::sequenceExpression(NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_LIST_EXPR, pos, "expressions", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::callExpression(JSObject *callee, NodeList &args, TokenPos *pos)
+{
+    JSObject *array = makeArray(args);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_CALL_EXPR, pos,
+                    "callee", OBJECT_TO_JSVAL(callee),
+                    "arguments", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::newExpression(JSObject *callee, NodeList &args, TokenPos *pos)
+{
+    JSObject *array = makeArray(args);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_NEW_EXPR, pos,
+                    "callee", OBJECT_TO_JSVAL(callee),
+                    "arguments", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::memberExpression(bool computed, JSObject *expr, JSObject *member, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("object", OBJECT_TO_JSVAL(expr)),
+        PS("property", OBJECT_TO_JSVAL(member)),
+        PS("computed", BOOLEAN_TO_JSVAL(computed)),
+        PS_END
+    };
+    return makeNode(AST_MEMBER_EXPR, pos, props);
+}
+
+JSObject *
+NodeBuilder::arrayExpression(NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_ARRAY_EXPR, pos, "elements", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::propertyPattern(JSObject *key, JSObject *patt, TokenPos *pos)
+{
+    return makeObject("key", OBJECT_TO_JSVAL(key),
+                      "value", OBJECT_TO_JSVAL(patt));
+}
+
+JSObject *
+NodeBuilder::propertyInitializer(JSObject *key, JSObject *val, PropKind kind, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("key", OBJECT_TO_JSVAL(key)),
+        PS("value", OBJECT_TO_JSVAL(val)),
+        PS("kind", intern(kind == PROP_INIT
+                          ? "init"
+                          : kind == PROP_GETTER
+                          ? "get"
+                          : "set")),
+        PS_END
+    };
+    return makeObject(props);
+}
+
+JSObject *
+NodeBuilder::objectExpression(NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_OBJECT_EXPR, pos, "properties", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::yieldExpression(JSObject *arg, TokenPos *pos)
+{
+    return makeNode(AST_YIELD_EXPR, pos, "argument", arg ? OBJECT_TO_JSVAL(arg) : JSVAL_NULL);
+}
+
+JSObject *
+NodeBuilder::comprehensionBlock(JSObject *patt, JSObject *src, bool isForEach, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("left", OBJECT_TO_JSVAL(patt)),
+        PS("right", OBJECT_TO_JSVAL(src)),
+        PS("each", BOOLEAN_TO_JSVAL(isForEach)),
+        PS_END
+    };
+    return makeNode(AST_COMP_BLOCK, pos, props);
+}
+
+JSObject *
+NodeBuilder::comprehensionExpression(JSObject *body, NodeList &blocks, JSObject *filter,
+                                     TokenPos *pos)
+{
+    JSObject *array = makeArray(blocks);
+    RNULL_UNLESS(array);
+
+    NodePropertySpec props[] = {
+        PS("body", OBJECT_TO_JSVAL(body)),
+        PS("blocks", OBJECT_TO_JSVAL(array)),
+        PS("filter", filter ? OBJECT_TO_JSVAL(filter) : JSVAL_NULL),
+        PS_END
+    };
+    return makeNode(AST_COMP_EXPR, pos, props);
+}
+
+JSObject *
+NodeBuilder::generatorExpression(JSObject *body, NodeList &blocks, JSObject *filter, TokenPos *pos)
+{
+    JSObject *array = makeArray(blocks);
+    RNULL_UNLESS(array);
+
+    NodePropertySpec props[] = {
+        PS("body", OBJECT_TO_JSVAL(body)),
+        PS("blocks", OBJECT_TO_JSVAL(array)),
+        PS("filter", filter ? OBJECT_TO_JSVAL(filter) : JSVAL_NULL),
+        PS_END
+    };
+    return makeNode(AST_GENERATOR_EXPR, pos, props);
+}
+
+JSObject *
+NodeBuilder::graphExpression(jsint idx, JSObject *expr, TokenPos *pos)
+{
+    jsval idxv;
+
+    RNULL_UNLESS(JS_NewNumberValue(cx, (jsdouble)idx, &idxv));
+
+    return makeNode(AST_GRAPH_EXPR, pos,
+                    "index", idxv,
+                    "expression", OBJECT_TO_JSVAL(expr));
+}
+
+JSObject *
+NodeBuilder::graphIndexExpression(jsint idx, TokenPos *pos)
+{
+    jsval idxv;
+
+    RNULL_UNLESS(JS_NewNumberValue(cx, (jsdouble)idx, &idxv));
+
+    return makeNode(AST_GRAPH_IDX_EXPR, pos, "index", idxv);
+}
+
+JSObject *
+NodeBuilder::variableDeclaration(NodeList &elts, VarDeclKind kind, TokenPos *pos)
+{
+    if (kind <= VARDECL_ERR || kind >= VARDECL_LIMIT)
+        return internalError();
+
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_VAR_DECL, pos,
+                    "declarations", OBJECT_TO_JSVAL(array),
+                    "kind", kind == VARDECL_CONST
+                            ? intern("const")
+                            : kind == VARDECL_LET
+                            ? intern("let")
+                            : intern("var"));
+}
+
+JSObject *
+NodeBuilder::variableDeclarator(JSObject *id, JSObject *init, TokenPos *pos)
+{
+    return makeObject("id", OBJECT_TO_JSVAL(id),
+                      "init", init ? OBJECT_TO_JSVAL(init) : JSVAL_NULL);
+}
+
+JSObject *
+NodeBuilder::switchCase(JSObject *expr, NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+
+    return makeNode(AST_CASE, pos,
+                    "test", expr ? OBJECT_TO_JSVAL(expr) : JSVAL_NULL,
+                    "consequent", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::catchClause(JSObject *var, JSObject *guard, JSObject *body, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("param", OBJECT_TO_JSVAL(var)),
+        PS("guard", guard ? OBJECT_TO_JSVAL(guard) : JSVAL_NULL),
+        PS("body", OBJECT_TO_JSVAL(body)),
+        PS_END
+    };
+    return makeNode(AST_CATCH, pos, props);
+}
+
+JSObject *
+NodeBuilder::literal(jsval val, TokenPos *pos)
+{
+    return makeNode(AST_LITERAL, pos, "value", val);
+}
+
+JSObject *
+NodeBuilder::identifier(jsval name, TokenPos *pos)
+{
+    return makeNode(AST_IDENTIFIER, pos, "name", name);
+}
+
+JSObject *
+NodeBuilder::objectPattern(NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+    return makeNode(AST_OBJECT_PATT, pos, "properties", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::arrayPattern(NodeList &elts, TokenPos *pos)
+{
+    JSObject *array = makeArray(elts);
+    RNULL_UNLESS(array);
+    return makeNode(AST_ARRAY_PATT, pos, "elements", OBJECT_TO_JSVAL(array));
+}
+
+JSObject *
+NodeBuilder::function(ASTType type, TokenPos *pos,
+                      JSObject *id, NodeList &args, JSObject *body,
+                      bool isGenerator, bool isExpression)
+{
+    JSObject *argsArray = makeArray(args);
+    RNULL_UNLESS(argsArray);
+
+    NodePropertySpec props[] = {
+        PS("id", id ? OBJECT_TO_JSVAL(id) : JSVAL_NULL),
+        PS("params", OBJECT_TO_JSVAL(argsArray)),
+        PS("body", OBJECT_TO_JSVAL(body)),
+        PS("generator", BOOLEAN_TO_JSVAL(isGenerator)),
+        PS("expression", BOOLEAN_TO_JSVAL(isExpression)),
+        PS_END
+    };
+    return makeNode(type, pos, props);
+}
+
+JSObject *
+NodeBuilder::xmlAnyName(TokenPos *pos)
+{
+    return makeNode(AST_XMLANYNAME, pos);
+}
+
+JSObject *
+NodeBuilder::xmlEscapeExpression(JSObject *expr, TokenPos *pos)
+{
+    return makeNode(AST_XMLESCAPE, pos, "expression", OBJECT_TO_JSVAL(expr));
+}
+
+JSObject *
+NodeBuilder::xmlFilterExpression(JSObject *left, JSObject *right, TokenPos *pos)
+{
+    return makeNode(AST_XMLFILTER, pos,
+                    "left", OBJECT_TO_JSVAL(left),
+                    "right", OBJECT_TO_JSVAL(right));
+}
+
+JSObject *
+NodeBuilder::xmlDefaultNamespace(JSObject *ns, TokenPos *pos)
+{
+    return makeNode(AST_XMLDEFAULT, pos, "namespace", OBJECT_TO_JSVAL(ns));
+}
+
+JSObject *
+NodeBuilder::xmlAttributeSelector(JSObject *expr, TokenPos *pos)
+{
+    return makeNode(AST_XMLATTR_SEL, pos, "attribute", OBJECT_TO_JSVAL(expr));
+}
+
+JSObject *
+NodeBuilder::xmlQualifiedIdentifier(JSObject *left, JSObject *right, bool computed, TokenPos *pos)
+{
+    NodePropertySpec props[] = {
+        PS("left", OBJECT_TO_JSVAL(left)),
+        PS("right", OBJECT_TO_JSVAL(right)),
+        PS("computed", BOOLEAN_TO_JSVAL(computed)),
+        PS_END
+    };
+    return makeNode(AST_XMLQUAL, pos, props);
+}
+
+JSObject *
+NodeBuilder::xmlElement(NodeList &elts, TokenPos *pos)
+{
+    return makeListNode(AST_XMLELEM, pos, "contents", elts);
+}
+
+JSObject *
+NodeBuilder::xmlText(jsval text, TokenPos *pos)
+{
+    return makeNode(AST_XMLTEXT, pos, "text", text);
+}
+
+JSObject *
+NodeBuilder::xmlList(NodeList &elts, TokenPos *pos)
+{
+    return makeListNode(AST_XMLLIST, pos, "contents", elts);
+}
+
+JSObject *
+NodeBuilder::xmlStartTag(NodeList &elts, TokenPos *pos)
+{
+    return makeListNode(AST_XMLSTART, pos, "contents", elts);
+}
+
+JSObject *
+NodeBuilder::xmlEndTag(NodeList &elts, TokenPos *pos)
+{
+    return makeListNode(AST_XMLEND, pos, "contents", elts);
+}
+
+JSObject *
+NodeBuilder::xmlPointTag(NodeList &elts, TokenPos *pos)
+{
+    return makeListNode(AST_XMLPOINT, pos, "contents", elts);
+}
+
+JSObject *
+NodeBuilder::xmlName(jsval text, TokenPos *pos)
+{
+    return makeNode(AST_XMLNAME, pos, "contents", text);
+}
+
+JSObject *
+NodeBuilder::xmlName(NodeList &elts, TokenPos *pos)
+{
+    return makeListNode(AST_XMLNAME, pos, "contents", elts);
+}
+
+JSObject *
+NodeBuilder::xmlAttribute(jsval text, TokenPos *pos)
+{
+    return makeNode(AST_XMLATTR, pos, "value", text);
+}
+
+JSObject *
+NodeBuilder::xmlCdata(jsval text, TokenPos *pos)
+{
+    return makeNode(AST_XMLCDATA, pos, "contents", text);
+}
+
+JSObject *
+NodeBuilder::xmlComment(jsval text, TokenPos *pos)
+{
+    return makeNode(AST_XMLCOMMENT, pos, "contents", text);
+}
+
+JSObject *
+NodeBuilder::xmlPI(jsval target, TokenPos *pos)
+{
+    return makeNode(AST_XMLPI, pos,
+                    "target", target,
+                    "contents", JSVAL_NULL);
+}
+
+JSObject *
+NodeBuilder::xmlPI(jsval target, jsval contents, TokenPos *pos)
+{
+    return makeNode(AST_XMLPI, pos,
+                    "target", target,
+                    "contents", contents);
+}
+
+
+/*
+ * Serialization of parse nodes to JavaScript objects.
+ *
+ * All serialization methods take a non-nullable JSParseNode pointer.
+ */
+
+class ASTSerializer
+{
+    JSContext     *cx;      /* ! */
+    NodeBuilder   builder;  /* _ */
+
+    /* (pn: ?) */
+    JSObject *failAt(JSParseNode *pn) {
+        if (!pn) {
+            JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_BAD_PARSE_NODE,
+                                 "unknown", "unknown location");
+            return NULL;
+        }
+
+        static const size_t nbytes = 128;
+
+        char buf1[nbytes];
+        JS_snprintf(buf1, nbytes, "%d", pn->pn_type);
+
+        char buf2[nbytes];
+        JS_snprintf(buf2, nbytes, "%d:%d - %d:%d",
+                    pn->pn_pos.begin.lineno, pn->pn_pos.begin.index,
+                    pn->pn_pos.end.lineno, pn->pn_pos.end.index);
+        JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_BAD_PARSE_NODE, buf1, buf2);
+        return NULL;
+    }
+
+    jsval atomContents(JSAtom *atom) {
+        return STRING_TO_JSVAL(ATOM_TO_STRING(atom ? atom : cx->runtime->atomState.emptyAtom));
+    }
+
+    BinaryOperator binop(TokenKind tk, JSOp op);
+    UnaryOperator unop(TokenKind tk, JSOp op);
+    AssignmentOperator aop(JSOp op);
+
+    bool statements(JSParseNode *pn, NodeList &elts);
+    bool expressions(JSParseNode *pn, NodeList &elts);
+    bool xmls(JSParseNode *pn, NodeList &elts);
+    bool binaryOperands(JSParseNode *pn, NodeList &elts);
+    bool functionArgs(JSParseNode *pn, JSParseNode *pnargs, JSParseNode *pndestruct,
+                      JSParseNode *pnbody, NodeList &args);
+
+    JSObject *sourceElement(JSParseNode *pn);
+    JSObject *declaration(JSParseNode *pn);
+    JSObject *variableDeclaration(JSParseNode *pn, bool let);
+    JSObject *variableDeclarator(JSParseNode *pn, VarDeclKind *pkind);
+    JSObject *statement(JSParseNode *pn);
+    JSObject *blockStatement(JSParseNode *pn);
+    JSObject *switchStatement(JSParseNode *pn);
+    JSObject *switchCase(JSParseNode *pn);
+    JSObject *tryStatement(JSParseNode *pn);
+    JSObject *catchClause(JSParseNode *pn);
+    JSObject *expression(JSParseNode *pn);
+    JSObject *propertyName(JSParseNode *pn);
+    JSObject *property(JSParseNode *pn);
+    JSObject *literal(JSParseNode *pn);
+    JSObject *identifier(JSAtom *atom, TokenPos *pos);
+    JSObject *identifier(JSParseNode *pn);
+    JSObject *pattern(JSParseNode *pn, VarDeclKind *pkind = NULL);
+    JSObject *arrayPattern(JSParseNode *pn, VarDeclKind *pkind);
+    JSObject *objectPattern(JSParseNode *pn, VarDeclKind *pkind);
+    JSObject *function(JSParseNode *pn, ASTType type);
+    JSObject *functionArgsAndBody(JSParseNode *pn, NodeList &args);
+    JSObject *functionBody(JSParseNode *pn, TokenPos *pos);
+    JSObject *comprehensionBlock(JSParseNode *pn);
+    JSObject *comprehension(JSParseNode *pn);
+    JSObject *generatorExpression(JSParseNode *pn);
+    JSObject *xml(JSParseNode *pn);
+
+  public:
+    ASTSerializer(JSContext *c, char const *src)
+        : cx(c), builder(c, src) {
+    }
+
+    JSObject *program(JSParseNode *pn);
+};
+
+AssignmentOperator
+ASTSerializer::aop(JSOp op)
+{
+    switch (op) {
+      case JSOP_NOP:
+        return AOP_ASSIGN;
+      case JSOP_ADD:
+        return AOP_PLUS;
+      case JSOP_SUB:
+        return AOP_MINUS;
+      case JSOP_MUL:
+        return AOP_STAR;
+      case JSOP_DIV:
+        return AOP_DIV;
+      case JSOP_MOD:
+        return AOP_MOD;
+      case JSOP_LSH:
+        return AOP_LSH;
+      case JSOP_RSH:
+        return AOP_RSH;
+      case JSOP_URSH:
+        return AOP_URSH;
+      case JSOP_BITOR:
+        return AOP_BITOR;
+      case JSOP_BITXOR:
+        return AOP_BITXOR;
+      case JSOP_BITAND:
+        return AOP_BITAND;
+      default:
+        return AOP_ERR;
+    }
+}
+
+UnaryOperator
+ASTSerializer::unop(TokenKind tk, JSOp op)
+{
+    if (tk == TOK_DELETE)
+        return UNOP_DELETE;
+
+    switch (op) {
+      case JSOP_NEG:
+        return UNOP_NEG;
+      case JSOP_POS:
+        return UNOP_POS;
+      case JSOP_NOT:
+        return UNOP_NOT;
+      case JSOP_BITNOT:
+        return UNOP_BITNOT;
+      case JSOP_TYPEOF:
+      case JSOP_TYPEOFEXPR:
+        return UNOP_TYPEOF;
+      case JSOP_VOID:
+        return UNOP_VOID;
+      default:
+        return UNOP_ERR;
+    }
+}
+
+BinaryOperator
+ASTSerializer::binop(TokenKind tk, JSOp op)
+{
+    switch (tk) {
+      case TOK_EQOP:
+        switch (op) {
+          case JSOP_EQ:
+            return BINOP_EQ;
+          case JSOP_NE:
+            return BINOP_NE;
+          case JSOP_STRICTEQ:
+            return BINOP_STRICTEQ;
+          case JSOP_STRICTNE:
+            return BINOP_STRICTNE;
+          default:
+            return BINOP_ERR;
+        }
+
+      case TOK_RELOP:
+        switch (op) {
+          case JSOP_LT:
+            return BINOP_LT;
+          case JSOP_LE:
+            return BINOP_LE;
+          case JSOP_GT:
+            return BINOP_GT;
+          case JSOP_GE:
+            return BINOP_GE;
+          default:
+            return BINOP_ERR;
+        }
+
+      case TOK_SHOP:
+        switch (op) {
+          case JSOP_LSH:
+            return BINOP_LSH;
+          case JSOP_RSH:
+            return BINOP_RSH;
+          case JSOP_URSH:
+            return BINOP_URSH;
+          default:
+            return BINOP_ERR;
+        }
+
+      case TOK_PLUS:
+        return BINOP_PLUS;
+      case TOK_MINUS:
+        return BINOP_MINUS;
+      case TOK_STAR:
+        return BINOP_STAR;
+      case TOK_DIVOP:
+        return (op == JSOP_MOD) ? BINOP_MOD : BINOP_DIV;
+      case TOK_BITOR:
+        return BINOP_BITOR;
+      case TOK_BITXOR:
+        return BINOP_BITXOR;
+      case TOK_BITAND:
+        return BINOP_BITAND;
+      case TOK_IN:
+        return BINOP_IN;
+      case TOK_INSTANCEOF:
+        return BINOP_INSTANCEOF;
+      case TOK_DBLDOT:
+        return BINOP_DBLDOT;
+      default:
+        return BINOP_ERR;
+    }
+}
+
+bool
+ASTSerializer::statements(JSParseNode *pn, NodeList &elts)
+{
+    JS_ASSERT(pn->pn_type == TOK_LC && pn->pn_arity == PN_LIST);
+
+    RFALSE_UNLESS(elts.reserve(pn->pn_count));
+
+    for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+        JSObject *child = sourceElement(next);
+        RFALSE_UNLESS(child);
+        (void)elts.append(child); /* space check above */
+    }
+
+    return true;
+}
+
+bool
+ASTSerializer::expressions(JSParseNode *pn, NodeList &elts)
+{
+    RFALSE_UNLESS(elts.reserve(pn->pn_count));
+
+    for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+        JSObject *elt = expression(next);
+        RFALSE_UNLESS(elt);
+        (void)elts.append(elt); /* space check above */
+    }
+
+    return true;
+}
+
+bool
+ASTSerializer::xmls(JSParseNode *pn, NodeList &elts)
+{
+    RFALSE_UNLESS(elts.reserve(pn->pn_count));
+
+    for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+        JSObject *elt = xml(next);
+        RFALSE_UNLESS(elt);
+        (void)elts.append(elt); /* space check above */
+    }
+
+    return true;
+}
+
+JSObject *
+ASTSerializer::blockStatement(JSParseNode *pn)
+{
+    JS_ASSERT(pn->pn_type == TOK_LC);
+
+    NodeList list(cx);
+    RNULL_UNLESS(statements(pn, list));
+    return builder.blockStatement(list, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::program(JSParseNode *pn)
+{
+    if (!pn) {
+        JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_BAD_INTERNAL_ARG);
+        return NULL;
+    }
+
+    NodeList list(cx);
+    RNULL_UNLESS(statements(pn, list));
+    return builder.program(list, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::sourceElement(JSParseNode *pn)
+{
+    /* SpiderMonkey allows declarations even in pure statement contexts. */
+    return statement(pn);
+}
+
+JSObject *
+ASTSerializer::declaration(JSParseNode *pn)
+{
+    switch (pn->pn_type) {
+      case TOK_FUNCTION:
+        return function(pn, AST_FUNC_DECL);
+
+      case TOK_VAR:
+        return variableDeclaration(pn, false);
+
+      case TOK_LET:
+        return variableDeclaration(pn, true);
+
+      default:
+        return failAt(pn);
+    }
+}
+
+JSObject *
+ASTSerializer::variableDeclaration(JSParseNode *pn, bool let)
+{
+    JS_ASSERT(let ? pn->pn_type == TOK_LET : pn->pn_type == TOK_VAR);
+
+    /* Later updated to VARDECL_CONST if we find a PND_CONST declarator. */
+    VarDeclKind kind = let ? VARDECL_LET : VARDECL_VAR;
+
+    NodeList list(cx);
+    RNULL_UNLESS(list.reserve(pn->pn_count));
+
+    /* In a for-in context, variable declarations contain just a single pattern. */
+    if (pn->pn_xflags & PNX_FORINVAR) {
+        JSObject *patt = pattern(pn->pn_head, &kind);
+        RNULL_UNLESS(patt);
+        JSObject *child = builder.variableDeclarator(patt, NULL, &pn->pn_head->pn_pos);
+        RNULL_UNLESS(child);
+        (void)list.append(child); /* space check above */
+        return builder.variableDeclaration(list, kind, &pn->pn_pos);
+    }
+
+    for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+        JSObject *child = variableDeclarator(next, &kind);
+        RNULL_UNLESS(child);
+        (void)list.append(child); /* space check above */
+    }
+
+    return builder.variableDeclaration(list, kind, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::variableDeclarator(JSParseNode *pn, VarDeclKind *pkind)
+{
+    /* A destructuring declarator is always a TOK_ASSIGN. */
+    JS_ASSERT(pn->pn_type == TOK_NAME || pn->pn_type == TOK_ASSIGN);
+
+    JSParseNode *pnleft;
+    JSParseNode *pnright;
+
+    switch (pn->pn_type) {
+      case TOK_NAME:
+        pnleft = pn;
+        pnright = pn->pn_expr;
+        break;
+
+      case TOK_ASSIGN:
+        pnleft = pn->pn_left;
+        pnright = pn->pn_right;
+        break;
+
+      default:
+        return failAt(pn);
+    }
+
+    JSObject *left = pattern(pnleft, pkind);
+    RNULL_UNLESS(left);
+
+    JSObject *right = NULL;
+    if (pnright) {
+        right = expression(pnright);
+        RNULL_UNLESS(right);
+    }
+
+    return builder.variableDeclarator(left, right, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::switchCase(JSParseNode *pn)
+{
+    JSObject *expr = NULL;
+    if (pn->pn_left) {
+        expr = expression(pn->pn_left);
+        RNULL_UNLESS(expr);
+    }
+
+    NodeList list(cx);
+    RNULL_UNLESS(statements(pn->pn_right, list));
+    return builder.switchCase(expr, list, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::switchStatement(JSParseNode *pn)
+{
+    JSObject *disc = expression(pn->pn_left);
+    RNULL_UNLESS(disc);
+
+    bool lexical;
+
+    JSParseNode *listNode;
+
+    if (pn->pn_right->pn_type == TOK_LEXICALSCOPE) {
+        listNode = pn->pn_right->pn_expr;
+        lexical = true;
+    } else {
+        listNode = pn->pn_right;
+        lexical = false;
+    }
+
+    NodeList list(cx);
+    RNULL_UNLESS(list.reserve(listNode->pn_count));
+
+    for (JSParseNode *next = listNode->pn_head; next; next = next->pn_next) {
+        JSObject *child = switchCase(next);
+        RNULL_UNLESS(child);
+        (void)list.append(child); /* space check above */
+    }
+
+    return builder.switchStatement(disc, list, lexical, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::catchClause(JSParseNode *pn)
+{
+    JSObject *var = pattern(pn->pn_kid1);
+    RNULL_UNLESS(var);
+
+    JSObject *guard = NULL;
+    if (pn->pn_kid2) {
+        guard = expression(pn->pn_kid2);
+        RNULL_UNLESS(guard);
+    }
+
+    JSObject *body = statement(pn->pn_kid3);
+    RNULL_UNLESS(body);
+
+    return builder.catchClause(var, guard, body, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::tryStatement(JSParseNode *pn)
+{
+    JSObject *body = statement(pn->pn_kid1);
+    RNULL_UNLESS(body);
+
+    NodeList list(cx);
+    if (pn->pn_kid2) {
+        RNULL_UNLESS(list.reserve(pn->pn_kid2->pn_count));
+
+        for (JSParseNode *next = pn->pn_kid2->pn_head; next; next = next->pn_next) {
+            JSObject *clause = catchClause(next->pn_expr);
+            RNULL_UNLESS(clause);
+            (void)list.append(clause); /* space check above */
+        }
+    }
+
+    JSObject *finally = NULL;
+    if (pn->pn_kid3) {
+        finally = statement(pn->pn_kid3);
+        RNULL_UNLESS(finally);
+    }
+
+    return builder.tryStatement(body, list, finally, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::statement(JSParseNode *pn)
+{
+    switch (pn->pn_type) {
+      case TOK_FUNCTION:
+      case TOK_VAR:
+      case TOK_LET:
+        return declaration(pn);
+
+      case TOK_SEMI:
+        if (pn->pn_kid) {
+            JSObject *expr = expression(pn->pn_kid);
+            RNULL_UNLESS(expr);
+            return builder.expressionStatement(expr, &pn->pn_pos);
+        }
+        return builder.emptyStatement(&pn->pn_pos);
+
+      case TOK_LEXICALSCOPE:
+        pn = pn->pn_expr;
+        if (pn->pn_type != TOK_LC)
+            return statement(pn);
+        /* FALL THROUGH */
+
+      case TOK_LC:
+        return blockStatement(pn);
+
+      case TOK_IF:
+      {
+        JSObject *test = expression(pn->pn_kid1);
+        RNULL_UNLESS(test);
+        JSObject *cons = statement(pn->pn_kid2);
+        RNULL_UNLESS(cons);
+        JSObject *alt = NULL;
+        if (pn->pn_kid3) {
+            alt = statement(pn->pn_kid3);
+            RNULL_UNLESS(alt);
+        }
+        return builder.ifStatement(test, cons, alt, &pn->pn_pos);
+      }
+
+      case TOK_SWITCH:
+        return switchStatement(pn);
+
+      case TOK_TRY:
+        return tryStatement(pn);
+
+      case TOK_WITH:
+      case TOK_WHILE:
+      {
+        JSObject *expr = expression(pn->pn_left);
+        RNULL_UNLESS(expr);
+        JSObject *stmt = statement(pn->pn_right);
+        RNULL_UNLESS(stmt);
+        return pn->pn_type == TOK_WITH
+               ? builder.withStatement(expr, stmt, &pn->pn_pos)
+               : builder.whileStatement(expr, stmt, &pn->pn_pos);
+      }
+
+      case TOK_DO:
+      {
+        JSObject *stmt = statement(pn->pn_left);
+        RNULL_UNLESS(stmt);
+        JSObject *test = expression(pn->pn_right);
+        RNULL_UNLESS(test);
+        return builder.doWhileStatement(stmt, test, &pn->pn_pos);
+      }
+
+      case TOK_FOR:
+      {
+        JSParseNode *head = pn->pn_left;
+
+        JSObject *stmt = statement(pn->pn_right);
+        RNULL_UNLESS(stmt);
+
+        bool isForEach = (pn->pn_iflags & JSITER_FOREACH) ? true : false;
+
+        if (head->pn_type == TOK_IN) {
+            JSObject *var = head->pn_left->pn_type == TOK_VAR
+                            ? variableDeclaration(head->pn_left, false)
+                            : head->pn_left->pn_type == TOK_LET
+                            ? variableDeclaration(head->pn_left, true)
+                            : pattern(head->pn_left);
+            RNULL_UNLESS(var);
+
+            JSObject *expr = expression(head->pn_right);
+            RNULL_UNLESS(expr);
+
+            return builder.forInStatement(var, expr, stmt, isForEach, &pn->pn_pos);
+        }
+
+        JSObject *init = NULL;
+        if (head->pn_kid1) {
+            init = (head->pn_kid1->pn_type == TOK_VAR)
+                   ? variableDeclaration(head->pn_kid1, false)
+                   : (head->pn_kid1->pn_type == TOK_LET)
+                   ? variableDeclaration(head->pn_kid1, true)
+                   : expression(head->pn_kid1);
+            RNULL_UNLESS(init);
+        }
+
+        JSObject *test = NULL;
+        if (head->pn_kid2) {
+            test = expression(head->pn_kid2);
+            RNULL_UNLESS(test);
+        }
+
+        JSObject *update = NULL;
+        if (head->pn_kid3) {
+            update = expression(head->pn_kid3);
+            RNULL_UNLESS(update);
+        }
+
+        return builder.forStatement(init, test, update, stmt, &pn->pn_pos);
+      }
+
+      case TOK_BREAK:
+      case TOK_CONTINUE:
+      {
+        JSObject *label = JSVAL_NULL;
+        if (pn->pn_atom) {
+            label = identifier(pn->pn_atom, NULL);
+            RNULL_UNLESS(label);
+        }
+
+        return pn->pn_type == TOK_BREAK
+               ? builder.breakStatement(label, &pn->pn_pos)
+               : builder.continueStatement(label, &pn->pn_pos);
+      }
+
+      case TOK_COLON:
+      {
+        JSObject *label = identifier(pn->pn_atom, NULL);
+        RNULL_UNLESS(label);
+
+        JSObject *stmt = statement(pn->pn_expr);
+        RNULL_UNLESS(stmt);
+
+        return builder.labeledStatement(label, stmt, &pn->pn_pos);
+      }
+
+      case TOK_THROW:
+      case TOK_RETURN:
+      {
+        JSObject *arg = NULL;
+        if (pn->pn_kid) {
+            arg = expression(pn->pn_kid);
+            RNULL_UNLESS(arg);
+        }
+        return pn->pn_type == TOK_THROW
+               ? builder.throwStatement(arg, &pn->pn_pos)
+               : builder.returnStatement(arg, &pn->pn_pos);
+      }
+
+      case TOK_DEBUGGER:
+        return builder.debuggerStatement(&pn->pn_pos);
+
+#if JS_HAS_XML_SUPPORT
+      case TOK_DEFAULT:
+      {
+        if (pn->pn_arity != PN_UNARY || pn->pn_kid->pn_type != TOK_STRING)
+            return failAt(pn);
+
+        JSObject *ns = literal(pn->pn_kid);
+        RNULL_UNLESS(ns);
+        return builder.xmlDefaultNamespace(ns, &pn->pn_pos);
+      }
+#endif
+
+      default:
+        return failAt(pn);
+    }
+}
+
+bool
+ASTSerializer::binaryOperands(JSParseNode *pn, NodeList &elts)
+{
+    if (pn->pn_arity == PN_BINARY) {
+        RFALSE_UNLESS(elts.reserve(2));
+
+        JSObject *left = expression(pn->pn_left);
+        RFALSE_UNLESS(left);
+
+        JSObject *right = expression(pn->pn_right);
+        RFALSE_UNLESS(right);
+
+        (void)elts.append(left);  /* space check above */
+        (void)elts.append(right); /* space check above */
+
+        return true;
+    }
+
+    JS_ASSERT(pn->pn_arity == PN_LIST);
+
+    return expressions(pn, elts);
+}
+
+JSObject *
+ASTSerializer::comprehensionBlock(JSParseNode *pn)
+{
+    JSParseNode *in = pn->pn_left;
+
+    if (!in || in->pn_type != TOK_IN)
+        return failAt(pn);
+
+    bool isForEach = pn->pn_iflags & JSITER_FOREACH;
+
+    JSObject *patt = pattern(in->pn_left);
+    RNULL_UNLESS(patt);
+
+    JSObject *src = expression(in->pn_right);
+    RNULL_UNLESS(src);
+
+    return builder.comprehensionBlock(patt, src, isForEach, &in->pn_pos);
+}
+
+JSObject *
+ASTSerializer::comprehension(JSParseNode *pn)
+{
+    if (pn->pn_type != TOK_FOR)
+        return failAt(pn);
+
+    NodeList blocks(cx);
+
+    JSParseNode *next = pn;
+    while (next->pn_type == TOK_FOR) {
+        JSObject *block = comprehensionBlock(next);
+        RNULL_UNLESS(block);
+        RNULL_UNLESS(blocks.append(block));
+        next = next->pn_right;
+    }
+
+    JSObject *filter = NULL;
+
+    if (next->pn_type == TOK_IF) {
+        filter = expression(next->pn_kid1);
+        RNULL_UNLESS(filter);
+        next = next->pn_kid2;
+    } else if (next->pn_type == TOK_LC && next->pn_count == 0) {
+        /* js_FoldConstants optimized away the push. */
+        NodeList empty(cx);
+        return builder.arrayExpression(empty, &pn->pn_pos);
+    }
+
+    if (next->pn_type != TOK_ARRAYPUSH)
+        return failAt(pn);
+
+    JSObject *body = expression(next->pn_kid);
+    RNULL_UNLESS(body);
+    return builder.comprehensionExpression(body, blocks, filter, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::generatorExpression(JSParseNode *pn)
+{
+    if (pn->pn_type != TOK_FOR)
+        return failAt(pn);
+
+    NodeList blocks(cx);
+
+    JSParseNode *next = pn;
+    while (next->pn_type == TOK_FOR) {
+        JSObject *block = comprehensionBlock(next);
+        RNULL_UNLESS(block);
+        RNULL_UNLESS(blocks.append(block));
+        next = next->pn_right;
+    }
+
+    JSObject *filter = NULL;
+
+    if (next->pn_type == TOK_IF) {
+        filter = expression(next->pn_kid1);
+        RNULL_UNLESS(filter);
+        next = next->pn_kid2;
+    }
+
+    if (next->pn_type != TOK_SEMI ||
+        next->pn_kid->pn_type != TOK_YIELD ||
+        !next->pn_kid->pn_kid)
+        return failAt(pn);
+
+    JSObject *body = expression(next->pn_kid->pn_kid);
+    RNULL_UNLESS(body);
+
+    return builder.generatorExpression(body, blocks, filter, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::expression(JSParseNode *pn)
+{
+    switch (pn->pn_type) {
+      case TOK_FUNCTION:
+        return function(pn, AST_FUNC_EXPR);
+
+      case TOK_COMMA:
+      {
+        NodeList list(cx);
+        RNULL_UNLESS(expressions(pn, list));
+        return builder.sequenceExpression(list, &pn->pn_pos);
+      }
+
+      case TOK_HOOK:
+      {
+        JSObject *test = expression(pn->pn_kid1);
+        RNULL_UNLESS(test);
+
+        JSObject *cons = expression(pn->pn_kid2);
+        RNULL_UNLESS(cons);
+
+        JSObject *alt = expression(pn->pn_kid3);
+        RNULL_UNLESS(alt);
+
+        return builder.conditionalExpression(test, cons, alt, &pn->pn_pos);
+      }
+
+      case TOK_OR:
+      case TOK_AND:
+      {
+        NodeList operands(cx);
+        RNULL_UNLESS(binaryOperands(pn, operands));
+        return builder.logicalExpression(pn->pn_type == TOK_OR, operands, &pn->pn_pos);
+      }
+
+      case TOK_INC:
+      case TOK_DEC:
+      {
+        JSObject *expr = expression(pn->pn_kid);
+        RNULL_UNLESS(expr);
+
+        bool incr = pn->pn_type == TOK_INC;
+        bool prefix = pn->pn_op >= JSOP_INCNAME && pn->pn_op <= JSOP_DECELEM;
+
+        return builder.updateExpression(expr, incr, prefix, &pn->pn_pos);
+      }
+
+      case TOK_ASSIGN:
+      {
+        JSObject *lhs = pattern(pn->pn_left);
+        RNULL_UNLESS(lhs);
+
+        JSObject *rhs = expression(pn->pn_right);
+        RNULL_UNLESS(rhs);
+
+        AssignmentOperator op = aop((JSOp)pn->pn_op);
+        if (op == AOP_ERR)
+            return failAt(pn);
+
+        return builder.assignmentExpression(op, lhs, rhs, &pn->pn_pos);
+      }
+
+      case TOK_EQOP:
+      case TOK_RELOP:
+      case TOK_SHOP:
+      case TOK_PLUS:
+      case TOK_MINUS:
+      case TOK_STAR:
+      case TOK_DIVOP:
+      case TOK_BITOR:
+      case TOK_BITXOR:
+      case TOK_BITAND:
+      case TOK_IN:
+      case TOK_INSTANCEOF:
+      case TOK_DBLDOT:
+      {
+        NodeList operands(cx);
+        RNULL_UNLESS(binaryOperands(pn, operands));
+
+        BinaryOperator op = binop((TokenKind)pn->pn_type, (JSOp)pn->pn_op);
+        if (op == BINOP_ERR)
+            return failAt(pn);
+
+        return builder.binaryExpression(op, operands, &pn->pn_pos);
+      }
+
+      case TOK_DELETE:
+      case TOK_UNARYOP:
+#if JS_HAS_XML_SUPPORT
+        if (pn->pn_op == JSOP_XMLNAME)
+            return expression(pn->pn_kid);
+#endif
+
+      {
+        JSObject *expr = expression(pn->pn_kid);
+        RNULL_UNLESS(expr);
+
+        UnaryOperator op = unop((TokenKind)pn->pn_type, (JSOp)pn->pn_op);
+        if (op == UNOP_ERR)
+            return failAt(pn);
+
+        return builder.unaryExpression(op, expr, &pn->pn_pos);
+      }
+
+      case TOK_NEW:
+      case TOK_LP:
+      {
+#ifdef JS_HAS_GENERATOR_EXPRS
+        if (pn->isGeneratorExpr())
+            return generatorExpression(pn->generatorExpr());
+#endif
+
+        JSParseNode *next = pn->pn_head;
+
+        JSObject *callee = expression(next);
+        RNULL_UNLESS(callee);
+
+        NodeList list(cx);
+        RNULL_UNLESS(list.reserve(pn->pn_count - 1));
+
+        for (next = next->pn_next; next; next = next->pn_next) {
+            JSObject *arg = expression(next);
+            RNULL_UNLESS(arg);
+            (void)list.append(arg); /* space check above */
+        }
+
+        return pn->pn_type == TOK_NEW
+               ? builder.newExpression(callee, list, &pn->pn_pos)
+               : builder.callExpression(callee, list, &pn->pn_pos);
+      }
+
+      case TOK_DOT:
+      {
+        JSObject *expr = expression(pn->pn_expr);
+        RNULL_UNLESS(expr);
+
+        JSObject *id = identifier(pn->pn_atom, NULL);
+        RNULL_UNLESS(id);
+
+        return builder.memberExpression(false, expr, id, &pn->pn_pos);
+      }
+
+      case TOK_LB:
+      {
+        JSObject *left = expression(pn->pn_left);
+        RNULL_UNLESS(left);
+
+        JSObject *right = expression(pn->pn_right);
+        RNULL_UNLESS(right);
+
+        return builder.memberExpression(true, left, right, &pn->pn_pos);
+      }
+
+      case TOK_RB:
+      {
+        NodeList list(cx);
+        RNULL_UNLESS(list.reserve(pn->pn_count));
+
+        for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+            if (next->pn_type == TOK_COMMA) {
+                (void)list.append(NULL); /* space check above */
+            } else {
+                JSObject *expr = expression(next);
+                RNULL_UNLESS(expr);
+                (void)list.append(expr); /* space check above */
+            }
+        }
+
+        return builder.arrayExpression(list, &pn->pn_pos);
+      }
+
+      case TOK_RC:
+      {
+        NodeList list(cx);
+        RNULL_UNLESS(list.reserve(pn->pn_count));
+
+        for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+            JSObject *prop = property(next);
+            RNULL_UNLESS(prop);
+            (void)list.append(prop); /* space check above */
+        }
+
+        return builder.objectExpression(list, &pn->pn_pos);
+      }
+
+      case TOK_NAME:
+        return identifier(pn);
+
+      case TOK_STRING:
+      case TOK_REGEXP:
+      case TOK_NUMBER:
+      case TOK_PRIMARY:
+        return literal(pn);
+
+      case TOK_YIELD:
+      {
+        JSObject *kid = NULL;
+        if (pn->pn_kid) {
+            kid = expression(pn->pn_kid);
+            RNULL_UNLESS(kid);
+        }
+        return builder.yieldExpression(kid, &pn->pn_pos);
+      }
+
+      case TOK_DEFSHARP:
+      {
+        JSObject *kid = expression(pn->pn_kid);
+        RNULL_UNLESS(kid);
+        return builder.graphExpression(pn->pn_num, kid, &pn->pn_pos);
+      }
+
+      case TOK_USESHARP:
+        return builder.graphIndexExpression(pn->pn_num, &pn->pn_pos);
+
+      case TOK_ARRAYCOMP:
+        if (pn->pn_count == 1) {
+            if (pn->pn_head->pn_type != TOK_LEXICALSCOPE)
+                return failAt(pn);
+
+            return comprehension(pn->pn_head->pn_expr);
+        }
+        /* NOTE: it's no longer the case that pn_count could be 2. */
+        return failAt(pn);
+
+#ifdef JS_HAS_XML_SUPPORT
+      case TOK_ANYNAME:
+        return builder.xmlAnyName(&pn->pn_pos);
+
+      case TOK_DBLCOLON:
+      {
+        JSObject *left;
+        JSObject *right;
+        bool computed;
+
+        if (pn->pn_arity == PN_NAME) {
+            left = expression(pn->pn_expr);
+            RNULL_UNLESS(left);
+
+            right = identifier(pn->pn_atom, NULL);
+            RNULL_UNLESS(right);
+
+            computed = false;
+        } else if (pn->pn_arity == PN_BINARY) {
+            left = expression(pn->pn_left);
+            RNULL_UNLESS(left);
+
+            right = expression(pn->pn_right);
+            RNULL_UNLESS(right);
+
+            computed = true;
+        } else
+            return failAt(pn);
+
+        return builder.xmlQualifiedIdentifier(left, right, computed, &pn->pn_pos);
+      }
+
+      case TOK_AT:
+      {
+        JSObject *expr = expression(pn->pn_kid);
+        RNULL_UNLESS(expr);
+
+        return builder.xmlAttributeSelector(expr, &pn->pn_pos);
+      }
+
+      case TOK_FILTER:
+      {
+        JSObject *left = expression(pn->pn_left);
+        RNULL_UNLESS(left);
+
+        JSObject *right = expression(pn->pn_right);
+        RNULL_UNLESS(right);
+
+        return builder.xmlFilterExpression(left, right, &pn->pn_pos);
+      }
+
+      default:
+        return xml(pn);
+#else
+      default:
+        return failAt(pn);
+#endif
+    }
+}
+
+JSObject *
+ASTSerializer::xml(JSParseNode *pn)
+{
+    switch (pn->pn_type) {
+#ifdef JS_HAS_XML_SUPPORT
+      case TOK_LC:
+      {
+        JSObject *expr = expression(pn->pn_kid);
+        RNULL_UNLESS(expr);
+        return builder.xmlEscapeExpression(expr, &pn->pn_pos);
+      }
+
+      case TOK_XMLELEM:
+      case TOK_XMLLIST:
+      case TOK_XMLSTAGO:
+      case TOK_XMLETAGO:
+      case TOK_XMLPTAGC:
+      {
+        NodeList list(cx);
+        RNULL_UNLESS(xmls(pn, list));
+
+        switch (pn->pn_type) {
+          case TOK_XMLELEM:
+            return builder.xmlElement(list, &pn->pn_pos);
+
+          case TOK_XMLLIST:
+            return builder.xmlList(list, &pn->pn_pos);
+
+          case TOK_XMLSTAGO:
+            return builder.xmlStartTag(list, &pn->pn_pos);
+
+          case TOK_XMLETAGO:
+            return builder.xmlEndTag(list, &pn->pn_pos);
+
+          case TOK_XMLPTAGC:
+            return builder.xmlPointTag(list, &pn->pn_pos);
+        }
+      }
+
+      case TOK_XMLTEXT:
+        return builder.xmlText(atomContents(pn->pn_atom), &pn->pn_pos);
+
+      case TOK_XMLNAME:
+        if (pn->pn_arity == PN_NULLARY)
+            return builder.xmlName(atomContents(pn->pn_atom), &pn->pn_pos);
+
+        if (pn->pn_arity == PN_LIST) {
+            NodeList list(cx);
+            RNULL_UNLESS(xmls(pn, list));
+            return builder.xmlName(list, &pn->pn_pos);
+        }
+
+        return failAt(pn);
+
+      case TOK_XMLATTR:
+        return builder.xmlAttribute(atomContents(pn->pn_atom), &pn->pn_pos);
+
+      case TOK_XMLCDATA:
+        return builder.xmlCdata(atomContents(pn->pn_atom), &pn->pn_pos);
+
+      case TOK_XMLCOMMENT:
+        return builder.xmlComment(atomContents(pn->pn_atom), &pn->pn_pos);
+
+      case TOK_XMLPI:
+        if (!pn->pn_atom2)
+            return builder.xmlPI(atomContents(pn->pn_atom), &pn->pn_pos);
+        else
+            return builder.xmlPI(atomContents(pn->pn_atom),
+                                 atomContents(pn->pn_atom2),
+                                 &pn->pn_pos);
+#endif
+
+      default:
+        return failAt(pn);
+    }
+}
+
+JSObject *
+ASTSerializer::propertyName(JSParseNode *pn)
+{
+    switch (pn->pn_type) {
+      case TOK_NAME:
+        return identifier(pn);
+
+      case TOK_STRING:
+      case TOK_NUMBER:
+        return literal(pn);
+
+      default:
+        return failAt(pn);
+    }
+}
+
+JSObject *
+ASTSerializer::property(JSParseNode *pn)
+{
+    PropKind kind;
+    switch (pn->pn_op) {
+      case JSOP_INITPROP:
+        kind = PROP_INIT;
+        break;
+
+      case JSOP_GETTER:
+        kind = PROP_GETTER;
+        break;
+
+      case JSOP_SETTER:
+        kind = PROP_SETTER;
+        break;
+
+      default:
+        return failAt(pn);
+    }
+
+    JSObject *key = propertyName(pn->pn_left);
+    RNULL_UNLESS(key);
+
+    JSObject *val = expression(pn->pn_right);
+    RNULL_UNLESS(val);
+
+    return builder.propertyInitializer(key, val, kind, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::literal(JSParseNode *pn)
+{
+    jsval val;
+    switch (pn->pn_type) {
+      case TOK_STRING:
+        val = STRING_TO_JSVAL(ATOM_TO_STRING(pn->pn_atom));
+        break;
+
+      case TOK_REGEXP:
+      {
+        JSObject *re1 = pn->pn_objbox ? pn->pn_objbox->object : NULL;
+        if (!re1 || !re1->isRegExp())
+            return failAt(pn);
+
+        JSObject *proto;
+        RNULL_UNLESS(js_GetClassPrototype(cx, cx->fp->scopeChain, JSProto_RegExp, &proto));
+
+        JSObject *re2 = js_CloneRegExpObject(cx, re1, proto);
+        RNULL_UNLESS(re2);
+
+        val = OBJECT_TO_JSVAL(re2);
+        break;
+      }
+
+      case TOK_NUMBER:
+        RNULL_UNLESS(JS_NewNumberValue(cx, pn->pn_dval, &val));
+        break;
+
+      case TOK_PRIMARY:
+        val = pn->pn_op == JSOP_NULL ? JSVAL_NULL : BOOLEAN_TO_JSVAL(pn->pn_op == JSOP_TRUE);
+        break;
+
+      default:
+        return failAt(pn);
+    }
+
+    return builder.literal(val, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::arrayPattern(JSParseNode *pn, VarDeclKind *pkind)
+{
+    JS_ASSERT(pn->pn_type == TOK_RB);
+
+    NodeList list(cx);
+
+    RNULL_UNLESS(list.reserve(pn->pn_count));
+
+    for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+        if (next->pn_type == TOK_COMMA)
+            (void)list.append(NULL); /* space check above */
+        else {
+            JSObject *patt = pattern(next, pkind);
+            RNULL_UNLESS(patt);
+            (void)list.append(patt); /* space check above */
+        }
+    }
+
+    return builder.arrayPattern(list, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::objectPattern(JSParseNode *pn, VarDeclKind *pkind)
+{
+    JS_ASSERT(pn->pn_type == TOK_RC);
+
+    NodeList list(cx);
+
+    RNULL_UNLESS(list.reserve(pn->pn_count));
+
+    for (JSParseNode *next = pn->pn_head; next; next = next->pn_next) {
+        if (next->pn_op != JSOP_INITPROP)
+            return failAt(pn);
+
+        JSObject *key = propertyName(next->pn_left);
+        RNULL_UNLESS(key);
+
+        JSObject *patt = pattern(next->pn_right, pkind);
+        RNULL_UNLESS(patt);
+
+        JSObject *prop = builder.propertyPattern(key, patt, &next->pn_pos);
+        RNULL_UNLESS(prop);
+
+        (void)list.append(prop); /* space check above */
+    }
+
+    return builder.objectPattern(list, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::pattern(JSParseNode *pn, VarDeclKind *pkind)
+{
+    switch (pn->pn_type) {
+      case TOK_RC:
+        return objectPattern(pn, pkind);
+
+      case TOK_RB:
+        return arrayPattern(pn, pkind);
+
+      case TOK_NAME:
+        if (pkind && (pn->pn_dflags & PND_CONST))
+            *pkind = VARDECL_CONST;
+        /* FALL THROUGH */
+
+      default:
+        return expression(pn);
+    }
+}
+
+JSObject *
+ASTSerializer::identifier(JSAtom *atom, TokenPos *pos)
+{
+    return builder.identifier(atomContents(atom), pos);
+}
+
+JSObject *
+ASTSerializer::identifier(JSParseNode *pn)
+{
+    if ((pn->pn_arity != PN_NAME && pn->pn_arity != PN_NULLARY) || !pn->pn_atom)
+        return failAt(pn);
+
+    return identifier(pn->pn_atom, &pn->pn_pos);
+}
+
+JSObject *
+ASTSerializer::function(JSParseNode *pn, ASTType type)
+{
+    JSFunction *func = (JSFunction *)pn->pn_funbox->object;
+
+    bool isGenerator =
+#ifdef JS_HAS_GENERATORS
+        pn->pn_funbox->tcflags & TCF_FUN_IS_GENERATOR;
+#else
+        false;
+#endif
+
+    bool isExpression =
+#ifdef JS_HAS_EXPR_CLOSURES
+        func->flags & JSFUN_EXPR_CLOSURE;
+#else
+        false;
+#endif
+
+    JSObject *id = NULL;
+    if (func->atom) {
+        id = identifier(func->atom, NULL);
+        RNULL_UNLESS(id);
+    }
+
+    NodeList args(cx);
+
+    JSParseNode *argsAndBody = (pn->pn_body->pn_type == TOK_UPVARS)
+                               ? pn->pn_body->pn_tree
+                               : pn->pn_body;
+
+    JSObject *body = functionArgsAndBody(argsAndBody, args);
+    RNULL_UNLESS(body);
+
+    return builder.function(type, &pn->pn_pos, id, args, body, isGenerator, isExpression);
+}
+
+JSObject *
+ASTSerializer::functionArgsAndBody(JSParseNode *pn, NodeList &args)
+{
+    JSParseNode *pnargs;
+    JSParseNode *pnbody;
+
+    /* Extract the args and body separately. */
+    if (pn->pn_type == TOK_ARGSBODY) {
+        pnargs = pn;
+        pnbody = pn->last();
+    } else {
+        pnargs = NULL;
+        pnbody = pn;
+    }
+
+    JSParseNode *pndestruct;
+
+    /* Extract the destructuring assignments. */
+    if (pnbody->pn_arity == PN_LIST && (pnbody->pn_xflags & PNX_DESTRUCT)) {
+        JSParseNode *head = pnbody->pn_head;
+        if (!head || head->pn_type != TOK_SEMI)
+            return failAt(pnbody);
+
+        pndestruct = head->pn_kid;
+        if (!pndestruct || pndestruct->pn_type != TOK_COMMA)
+            return failAt(pnbody);
+    } else {
+        pndestruct = NULL;
+    }
+
+    /* Serialize the arguments and body. */
+    switch (pnbody->pn_type) {
+      case TOK_RETURN: /* expression closure, no destructured args */
+        RNULL_UNLESS(functionArgs(pn, pnargs, NULL, pnbody, args));
+        return expression(pnbody->pn_kid);
+
+      case TOK_SEQ:    /* expression closure with destructured args */
+      {
+        JSParseNode *pnstart = pnbody->pn_head->pn_next;
+        if (!pnstart || pnstart->pn_type != TOK_RETURN)
+            return failAt(pnbody);
+
+        RNULL_UNLESS(functionArgs(pn, pnargs, pndestruct, pnbody, args));
+        return expression(pnstart->pn_kid);
+      }
+
+      case TOK_LC:     /* statement closure */
+      {
+        JSParseNode *pnstart = (pnbody->pn_xflags & PNX_DESTRUCT)
+                               ? pnbody->pn_head->pn_next
+                               : pnbody->pn_head;
+        RNULL_UNLESS(functionArgs(pn, pnargs, pndestruct, pnbody, args));
+        return functionBody(pnstart, &pnbody->pn_pos);
+      }
+
+      default:
+        return failAt(pnbody);
+    }
+}
+
+bool
+ASTSerializer::functionArgs(JSParseNode *pn, JSParseNode *pnargs, JSParseNode *pndestruct,
+                            JSParseNode *pnbody, NodeList &args)
+{
+    uintN i = 0;
+    JSParseNode *arg = pnargs ? pnargs->pn_head : NULL;
+    JSParseNode *destruct = pndestruct ? pndestruct->pn_head : NULL;
+    JSObject *node;
+
+    /*
+     * Arguments are found in potentially two different places: 1) the
+     * argsbody sequence (which ends with the body node), or 2) a
+     * destructuring initialization at the beginning of the body. Loop
+     * |arg| through the argsbody and |destruct| through the initial
+     * destructuring assignments, stopping only when we've exhausted
+     * both.
+     */
+    while ((arg && arg != pnbody) || destruct) {
+        if (arg && arg != pnbody && arg->frameSlot() == i) {
+            node = identifier(arg);
+            RFALSE_UNLESS(node);
+            RFALSE_UNLESS(args.append(node));
+            arg = arg->pn_next;
+        } else if (destruct && destruct->pn_right->frameSlot() == i) {
+            node = pattern(destruct->pn_left);
+            RFALSE_UNLESS(node);
+            RFALSE_UNLESS(args.append(node));
+            destruct = destruct->pn_next;
+        } else {
+            (void)failAt(pn);
+            return false;
+        }
+        ++i;
+    }
+
+    return true;
+}
+
+JSObject *
+ASTSerializer::functionBody(JSParseNode *pn, TokenPos *pos)
+{
+    NodeList elts(cx);
+
+    /* We aren't sure how many elements there are up front, so we'll check each append. */
+    for (JSParseNode *next = pn; next; next = next->pn_next) {
+        JSObject *child = sourceElement(next);
+        RNULL_UNLESS(child);
+        RNULL_UNLESS(elts.append(child));
+    }
+
+    return builder.blockStatement(elts, pos);
+}
+
+} /* namespace js */
+
+/* Reflect class */
+
+JSClass js_ASTNodeClass = {
+    "ASTNode",
+    JSCLASS_IS_ANONYMOUS | JSCLASS_HAS_CACHED_PROTO(JSProto_ASTNode),
+    JS_PropertyStub,  JS_PropertyStub,  JS_PropertyStub,  JS_PropertyStub,
+    JS_EnumerateStub, JS_ResolveStub,   JS_ConvertStub,   NULL,
+    JSCLASS_NO_OPTIONAL_MEMBERS
+};
+
+JSClass js_ReflectClass = {
+    js_Reflect_str,
+    JSCLASS_HAS_CACHED_PROTO(JSProto_Reflect),
+    JS_PropertyStub,  JS_PropertyStub,  JS_PropertyStub,  JS_PropertyStub,
+    JS_EnumerateStub, JS_ResolveStub,   JS_ConvertStub,   NULL,
+    JSCLASS_NO_OPTIONAL_MEMBERS
+};
+
+static JSBool
+reflect_parse(JSContext *cx, uintN argc, jsval *vp)
+{
+    if (argc < 1) {
+        JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_MORE_ARGS_NEEDED,
+                             "Reflect.parse", "0", "s");
+        return JS_FALSE;
+    }
+
+    JSString *src = js_ValueToString(cx, JS_ARGV(cx, vp)[0]);
+    RFALSE_UNLESS(src);
+
+    const char *filename = NULL;
+    if (argc > 1) {
+        JSString *str = js_ValueToString(cx, JS_ARGV(cx, vp)[1]);
+        RFALSE_UNLESS(str);
+        filename = JS_GetStringBytes(str);
+    }
+
+    Parser parser(cx);
+    RFALSE_UNLESS(parser.init(JS_GetStringChars(src), JS_GetStringLength(src), NULL, filename, 1));
+
+    JSParseNode *pn = parser.parse(NULL);
+    RFALSE_UNLESS(pn);
+
+    RFALSE_UNLESS(JS_EnterLocalRootScope(cx));
+
+    ASTSerializer serialize(cx, filename);
+    JSObject *obj = serialize.program(pn);
+    if (!obj) {
+        JS_LeaveLocalRootScopeWithResult(cx, JSVAL_NULL);
+        return JS_FALSE;
+    }
+
+    jsval val = OBJECT_TO_JSVAL(obj);
+    JS_LeaveLocalRootScopeWithResult(cx, val);
+    JS_SET_RVAL(cx, vp, val);
+    return JS_TRUE;
+}
+
+static JSFunctionSpec ast_methods[] = {
+    JS_FS_END
+};
+
+static JSFunctionSpec reflect_static_methods[] = {
+    JS_FN("parse", reflect_parse, 0, 0),
+    JS_FS_END
+};
+
+
+JSObject *
+js_InitReflectClasses(JSContext *cx, JSObject *obj)
+{
+    JSObject *Reflect;
+
+    Reflect = JS_NewObject(cx, &js_ReflectClass, NULL, obj);
+    if (!Reflect)
+        return NULL;
+
+    if (!JS_DefineProperty(cx, obj, js_Reflect_str, OBJECT_TO_JSVAL(Reflect),
+                           JS_PropertyStub, JS_PropertyStub, 0))
+        return NULL;
+
+    if (!JS_DefineFunctions(cx, Reflect, reflect_static_methods))
+        return NULL;
+
+    if (!JS_InitClass(cx, obj, NULL, &js_ASTNodeClass, NULL, 0,
+                      NULL, ast_methods, NULL, NULL))
+        return NULL;
+
+    return Reflect;
+}
new file mode 100644
--- /dev/null
+++ b/js/src/jsreflect.h
@@ -0,0 +1,142 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sw=4 et tw=99 ft=cpp:
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released
+ * June 12, 2009.
+ *
+ * The Initial Developer of the Original Code is
+ *   the Mozilla Corporation.
+ *
+ * Contributor(s):
+ *   Dave Herman <dherman@mozilla.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * JS reflection package.
+ */
+#ifndef jsreflect_h___
+#define jsreflect_h___
+
+#include <stdlib.h>
+#include "jspubtd.h"
+
+namespace js {
+
+typedef enum ASTType {
+    AST_ERROR = -1,
+#define ASTDEF(ast, val, str) ast = val,
+#include "jsast.tbl"
+#undef ASTDEF
+    AST_LIMIT
+} ASTType;
+
+typedef enum {
+    AOP_ERR = -1,
+
+    /* assign */
+    AOP_ASSIGN = 0,
+    /* operator-assign */
+    AOP_PLUS, AOP_MINUS, AOP_STAR, AOP_DIV, AOP_MOD,
+    /* shift-assign */
+    AOP_LSH, AOP_RSH, AOP_URSH,
+    /* binary */
+    AOP_BITOR, AOP_BITXOR, AOP_BITAND,
+
+    AOP_LIMIT
+} AssignmentOperator;
+
+typedef enum {
+    BINOP_ERR = -1,
+
+    /* eq */
+    BINOP_EQ = 0, BINOP_NE, BINOP_STRICTEQ, BINOP_STRICTNE,
+    /* rel */
+    BINOP_LT, BINOP_LE, BINOP_GT, BINOP_GE,
+    /* shift */
+    BINOP_LSH, BINOP_RSH, BINOP_URSH,
+    /* arithmetic */
+    BINOP_PLUS, BINOP_MINUS, BINOP_STAR, BINOP_DIV, BINOP_MOD,
+    /* binary */
+    BINOP_BITOR, BINOP_BITXOR, BINOP_BITAND,
+    /* misc */
+    BINOP_IN, BINOP_INSTANCEOF,
+    /* xml */
+    BINOP_DBLDOT,
+
+    BINOP_LIMIT
+} BinaryOperator;
+
+typedef enum {
+    UNOP_ERR = -1,
+
+    UNOP_DELETE = 0,
+    UNOP_NEG,
+    UNOP_POS,
+    UNOP_NOT,
+    UNOP_BITNOT,
+    UNOP_TYPEOF,
+    UNOP_VOID,
+
+    UNOP_LIMIT
+} UnaryOperator;
+
+typedef enum {
+    VARDECL_ERR = -1,
+    VARDECL_VAR = 0,
+    VARDECL_CONST,
+    VARDECL_LET,
+    VARDECL_LIMIT
+} VarDeclKind;
+
+typedef enum {
+    PROP_ERR = -1,
+    PROP_INIT = 0,
+    PROP_GETTER,
+    PROP_SETTER,
+    PROP_LIMIT
+} PropKind;
+
+extern char const *aopNames[];
+extern char const *binopNames[];
+extern char const *unopNames[];
+extern char const *nodeTypeNames[];
+
+} /* namespace js */
+
+JS_BEGIN_EXTERN_C
+
+extern JSClass js_ReflectClass;
+extern JSClass js_ASTNodeClass;
+
+extern JSObject *
+js_InitReflectClasses(JSContext *cx, JSObject *obj);
+
+JS_END_EXTERN_C
+
+#endif /* jsreflect_h___ */
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -67,16 +67,17 @@
 #include "jsiter.h"
 #include "jslock.h"
 #include "jsnum.h"
 #include "jsobj.h"
 #include "jsparse.h"
 #include "jsscope.h"
 #include "jsscript.h"
 #include "jstracer.h"
+#include "jsreflect.h"
 #include "jsxml.h"
 
 #include "prmjtime.h"
 
 #ifdef JSDEBUGGER
 #include "jsdebug.h"
 #ifdef JSDEBUGGER_JAVA_UI
 #include "jsdjava.h"
@@ -2653,16 +2654,34 @@ split_enumerate(JSContext *cx, JSObject 
         *statep = JSVAL_NULL;
         break;
     }
 
     return JS_TRUE;
 }
 
 static JSBool
+ResolveClass(JSContext *cx, JSObject *obj, jsval id, JSBool *resolved)
+{
+    if (!JS_ResolveStandardClass(cx, obj, id, resolved))
+        return JS_FALSE;
+
+    if (! *resolved) {
+        JSAtom *atom = OFFSET_TO_ATOM(cx->runtime, CLASS_ATOM_OFFSET(Reflect));
+        if (ATOM_KEY(atom) == id) {
+            if (!js_InitReflectClasses(cx, obj))
+                return JS_FALSE;
+            *resolved = JS_TRUE;
+        }
+    }
+
+    return JS_TRUE;
+}
+
+static JSBool
 split_resolve(JSContext *cx, JSObject *obj, jsval id, uintN flags, JSObject **objp)
 {
     ComplexObject *cpx;
 
     if (JSVAL_IS_STRING(id) &&
         !strcmp(JS_GetStringBytes(JSVAL_TO_STRING(id)), "isInner")) {
         *objp = obj;
         return JS_DefineProperty(cx, obj, "isInner", JSVAL_VOID, NULL, NULL,
@@ -2686,17 +2705,17 @@ split_resolve(JSContext *cx, JSObject *o
 
         return JS_TRUE;
     }
 
 #ifdef LAZY_STANDARD_CLASSES
     if (!(flags & JSRESOLVE_ASSIGNING)) {
         JSBool resolved;
 
-        if (!JS_ResolveStandardClass(cx, obj, id, &resolved))
+        if (!ResolveClass(cx, obj, id, &resolved))
             return JS_FALSE;
 
         if (resolved) {
             *objp = obj;
             return JS_TRUE;
         }
     }
 #endif
@@ -2900,17 +2919,17 @@ sandbox_resolve(JSContext *cx, JSObject 
     jsval v;
     JSBool b, resolved;
 
     if (!JS_GetProperty(cx, obj, "lazy", &v))
         return JS_FALSE;
 
     JS_ValueToBoolean(cx, v, &b);
     if (b && (flags & JSRESOLVE_ASSIGNING) == 0) {
-        if (!JS_ResolveStandardClass(cx, obj, id, &resolved))
+        if (!ResolveClass(cx, obj, id, &resolved))
             return JS_FALSE;
         if (resolved) {
             *objp = obj;
             return JS_TRUE;
         }
     }
     *objp = NULL;
     return JS_TRUE;
@@ -4609,17 +4628,17 @@ global_enumerate(JSContext *cx, JSObject
 
 static JSBool
 global_resolve(JSContext *cx, JSObject *obj, jsval id, uintN flags,
                JSObject **objp)
 {
 #ifdef LAZY_STANDARD_CLASSES
     JSBool resolved;
 
-    if (!JS_ResolveStandardClass(cx, obj, id, &resolved))
+    if (!ResolveClass(cx, obj, id, &resolved))
         return JS_FALSE;
     if (resolved) {
         *objp = obj;
         return JS_TRUE;
     }
 #endif
 
 #if defined(SHELL_HACK) && defined(DEBUG) && defined(XP_UNIX)
new file mode 100644
--- /dev/null
+++ b/js/src/trace-test/lib/array.js
@@ -0,0 +1,22 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+function Elements(arrayLike) {
+    this.i = 0;
+    this.stop = arrayLike.length;
+    this.source = arrayLike;
+}
+Elements.prototype = {
+    // FIXME: use Proxy.iterator when it's available
+    __iterator__: function() this,
+    next: function() {
+        if (this.i >= this.stop)
+            throw StopIteration;
+        return this.source[this.i++];
+    }
+};
+function elements(arrayLike) {
+    return new Elements(arrayLike);
+}
new file mode 100644
--- /dev/null
+++ b/js/src/trace-test/lib/match.js
@@ -0,0 +1,157 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var Match =
+
+(function() {
+
+    function Pattern(template) {
+        // act like a constructor even as a function
+        if (!(this instanceof Pattern))
+            return new Pattern(template);
+
+        this.template = template;
+    }
+
+    Pattern.prototype = {
+        match: function(act) {
+            return match(act, this.template);
+        },
+
+        matches: function(act) {
+            try {
+                return this.match(act);
+            }
+            catch (e if e instanceof MatchError) {
+                return false;
+            }
+        },
+
+        assert: function(act, message) {
+            try {
+                return this.match(act);
+            }
+            catch (e if e instanceof MatchError) {
+                throw new Error((message || "failed match") + ": " + e.message);
+            }
+        },
+
+        toString: function() "[object Pattern]"
+    };
+
+    Pattern.ANY = new Pattern;
+    Pattern.ANY.template = Pattern.ANY;
+
+    var quote = uneval;
+
+    function MatchError(msg) {
+        this.message = msg;
+    }
+
+    MatchError.prototype = {
+        toString: function() {
+            return "match error: " + this.message;
+        }
+    };
+
+    function isAtom(x) {
+        return (typeof x === "number") ||
+            (typeof x === "string") ||
+            (typeof x === "boolean") ||
+            (x === null) ||
+            (typeof x === "object" && x instanceof RegExp);
+    }
+
+    function isObject(x) {
+        return (x !== null) && (typeof x === "object");
+    }
+
+    function isArrayLike(x) {
+        return isObject(x) && ("length" in x);
+    }
+
+    function matchAtom(act, exp) {
+        if ((typeof exp) === "number" && isNaN(exp)) {
+            if ((typeof act) !== "number" || !isNaN(act))
+                throw new MatchError("expected NaN, got: " + quote(act));
+            return true;
+        }
+
+        if (exp === null) {
+            if (act !== null)
+                throw new MatchError("expected null, got: " + quote(act));
+            return true;
+        }
+
+        if (exp instanceof RegExp) {
+            if (!(act instanceof RegExp) || exp.source !== act.source)
+                throw new MatchError("expected " + quote(exp) + ", got: " + quote(act));
+            return true;
+        }
+
+        switch (typeof exp) {
+        case "string":
+            if (act !== exp)
+                throw new MatchError("expected " + exp.quote() + ", got " + quote(act));
+            return true;
+        case "boolean":
+        case "number":
+            if (exp !== act)
+                throw new MatchError("expected " + exp + ", got " + quote(act));
+            return true;
+        }
+
+        throw new Error("bad pattern: " + exp.toSource());
+    }
+
+    function matchObject(act, exp) {
+        if (!isObject(act))
+            throw new MatchError("expected object, got " + quote(act));
+
+        for (var key in exp) {
+            if (!(key in act))
+                throw new MatchError("expected property " + key.quote() + " not found in " + quote(act));
+            match(act[key], exp[key]);
+        }
+
+        return true;
+    }
+
+    function matchArray(act, exp) {
+        if (!isObject(act) || !("length" in act))
+            throw new MatchError("expected array-like object, got " + quote(act));
+
+        var length = exp.length;
+        for (var i = 0; i < length; i++) {
+            if (i in exp) {
+                if (!(i in act))
+                    throw new MatchError("expected array property " + i + " not found in " + quote(act));
+                match(act[i], exp[i]);
+            }
+        }
+
+        return true;
+    }
+
+    function match(act, exp) {
+        if (exp === Pattern.ANY)
+            return true;
+
+        if (exp instanceof Pattern)
+            return exp.match(act);
+
+        if (isAtom(exp))
+            return matchAtom(act, exp);
+
+        if (isArrayLike(exp))
+            return matchArray(act, exp);
+
+        return matchObject(act, exp);
+    }
+
+    return { Pattern: Pattern,
+             MatchError: MatchError };
+
+})();
new file mode 100644
--- /dev/null
+++ b/js/src/trace-test/tests/reflect/data/flapjax.txt
@@ -0,0 +1,437 @@
+FrJS = function() {
+	// Used to disambiguate references to 'this' in inner classes.
+	var mgr = this; 
+	
+	// INNER CLASSES --------------------------------
+	
+	// Utility map class... because standard JS associative arrays don't work properly.
+	this.Hash = function() {
+		this.keys = new Array();
+		this.values = new Array();
+		
+		this.contains = function (key) {
+			for(var i = 0; i < this.keys.length; i++) {
+				if(this.keys[i] == key) {
+					return true;
+				}
+			}
+			
+			return false;
+		};
+		
+		this.get = function (key) {
+			for(var i = 0; i < this.keys.length; i++) {
+				if(this.keys[i] == key) {
+					return this.values[i];
+				}
+			}
+			
+			return null;
+		};
+		
+		this.put = function (key, value) {
+			this.keys[this.keys.length] = key;
+			this.values[this.values.length] = value;
+			return value;
+		};
+		
+		this.toString = function () {
+			var ans = "(";
+			
+			if(this.keys.length > 0) {
+				ans += this.keys[0] + ":" + this.values[0];
+			
+				for(var i = 1; i < this.keys.length - 1; i++) {
+					ans += "," + this.keys[i] + ":" + this.values[i];
+				}
+			}
+			
+			return ans + ")";
+		};
+	};
+	
+	// Class representing a signal.
+	this.Signal = function(src, value, timestamp) {
+		this.src = src;
+		this.value = value;
+		this.timestamp = timestamp;
+		this.toString = function() {
+			return "(Signal " + this.value + " " + this.timestamp + ")";
+		};
+	};
+	
+	// Node (arrayof node) -> node
+	// 
+	// Superclass of Event and Behaviour... contains code for receiving and 
+	// propagating signals.
+	this.Node = function(prev) {
+		this.next = new Array;
+		
+		this.type = "Node";
+		
+		this.addNext = function(n) { 
+			this.next[this.next.length] = n; 
+		};
+		
+		this.propagate = function(signal) {	
+			for(var i = 0; i < this.next.length; i++) {
+				this.next[i].onSignal(signal);
+			}
+		};
+		
+		for(var i = 0; i < prev.length; i++) {
+			prev[i].addNext(this);
+		}
+	};
+
+	// Event (arrayof node) -> event
+	// 
+	// Class representing an event.
+	// 
+	// Events receive incoming signals, process them and (if appropriate)
+	// immediately send output signals. Values of output signals are based
+	// directly on values of input signals.
+	this.Event = function(prev) {
+		this.superclass = mgr.Node;
+		this.superclass(prev);
+		
+		this.type = "Event";
+		
+		this.onSignal = function(signal) {
+			this.propagate(new mgr.Signal(this, signal.value, new Date));
+		};
+		
+		this.toString = function() { 
+			return "(" + this.type + ")"; 
+		};
+	};
+	
+	// Event any (arrayof node) -> behaviour<any>
+	// 
+	// Class representing a behaviour.
+	// 
+	// Behaviours store persistent values that can be accessed by other
+	// behaviours. They accept input signals and use them as cues to recalculate
+	// their values. Stored values are not necessarily related to signal values:
+	// they may depend on values from other nodes or other bits of JavaScript 
+	// data. Output signals are emitted only if the stored value changes.
+	this.Behaviour = function(init, prev) {
+		this.superclass = mgr.Node;
+		this.superclass(prev);
+		
+		this.type = "Behaviour";
+		
+		this.value = init;
+		
+		this.onSignal = function(signal) {
+			this.setValue(signal.value);
+		};
+		
+		this.setValue = function(newValue) {
+			if(this.value != newValue) {
+				this.value = newValue;
+				this.propagate(new mgr.Signal(this, newValue, new Date));
+			}
+		};
+				
+		this.toString = function() { 
+			return "(" + this.type + " " + this.value + ")"; 
+		};
+	};
+	
+	// FIELDS ---------------------------------------
+
+	this.domEventInputs = new mgr.Hash();
+	this.domEventOutputs = new mgr.Hash();
+	
+	// METHODS --------------------------------------
+
+	// getDomEventData element string (union mgr.DomEventInputs mgr.DomEventOutputs) -> (arrayof node)
+	// 
+	// This internal function returns an array of nodes registered as 
+	// DomEventInputs or DomEventOutputs, depending on the value of the
+	// third parameter.
+	this.getDomEventData = function(id, type, data) {
+		var temp = data.get(id);
+		
+		if(temp == null) {
+			temp = data.put(id, new mgr.Hash());
+		}
+		
+		var ans = temp.get(type);
+		
+		if(ans == null) {
+			ans = temp.put(type, new Array());
+		}
+
+		return ans;
+	};
+
+	// getDomEventInputs element string -> (arrayof node)
+	// 
+	// This internal function returns an array in which nodes registered as 
+	// DomEventInputs for the specified event can be stored and retrieved.
+	this.getDomEventInputs = function(id, type) {
+		return this.getDomEventData(id, type, mgr.domEventInputs);
+	};
+
+	// getDomEventOutputs element string -> (arrayof node)
+	// 
+	// This internal function returns an array in which nodes registered as 
+	// DomEventOutputs for the specified event can be stored and retrieved.
+	this.getDomEventOutputs = function(id, type) {
+		return this.getDomEventData(id, type, mgr.domEventOutputs);
+	};
+
+	// doDomEvent element domEvent -> void
+	//
+	// This internal function is bound to DOM event handlers such as 
+	// 'onsubmit' when they are attached to FrJS via createDomEventInput().
+	this.doDomEvent = function(elem, domEvent) {
+		var id = elem.id;
+		var type = "on" + domEvent.type;
+		
+		var inputs = mgr.getDomEventInputs(id, type);
+		var outputs = mgr.getDomEventOutputs(id, type);
+		
+		// alert("Manager: Handling {" + id + "} {" + type + "} {" + inputs + "} {" + outputs + "}");
+	
+		for(var i = 0; i < inputs.length; i++) {
+			inputs[i].doDomEvent(domEvent);
+		}
+	
+		if(outputs.length > 0) {
+			var node1 = outputs["cancelBubble"];
+			if(node1) domEvent.cancelBubble = node1.value;
+
+			var node2 = outputs["returnValue"];
+			if(node2) {
+				domEvent.returnValue = node2.value;
+				return node2.value;
+			}
+		}
+	};
+
+	// createDomEventInput 
+	//    element 
+	//    (union "onclick" ...) 
+	//    [(domEvent -> <a>)] 
+	//    -> node<a>
+	// 
+	// Registers FrJS to handle a particular DOM event. Returns an Event that 
+	// receives an input signal whenever the specified event occurs.
+	// 
+	// The third argument is a function mapping DOM events to signal values. 
+	// If no argument is supplied, all incoming signals have the boolean value 
+	// 'true'.
+	this.createDomEventInput = function(elem, type) {
+		var id = elem.id;
+
+		var valueFn = arguments.length == 3
+			? function(domEvent) { eval("return domEvent." + arguments[2] + ";"); }
+			: function(domEvent) { return true; };
+
+		var node = new mgr.Event(new Array);
+		
+		node.type = "DomEventInput " + id + " " + type;
+
+		node.doDomEvent = function(domEvent) {
+			// alert(this + ": Handling " + domEvent);
+			this.propagate(new mgr.Signal(this, valueFn(domEvent), new Date));
+		};
+
+		var inputs = mgr.getDomEventInputs(id, type);
+		inputs[inputs.length] = node;
+
+		// alert("Registering {" + id + "} {" + type + "} {" + inputs + "}");
+
+		eval("elem." + type + " = function(domEvent) { return mgr.doDomEvent(elem, domEvent); };");
+
+
+		return node;
+	};
+	
+	// createDomEventOutput 
+	//    element
+	//    (union "onclick" ...)
+	//    (union "resultValue" "cancelBubble") 
+	//    node 
+	//    -> void
+	//
+	// Specifies that a particular node should be used to pass a value back to
+	// a DOM event object. When the event occurs and its input signal has been 
+	// processed by the network, the specified field ("returnValue" or 
+	// "cancelBubble") is set to the value of the specified node, allowing the 
+	// event to be cancelled in the relevant way.
+	this.registerDomEventOutput = function(elem, type, field, node) {
+		var id = elem.id;
+	
+		var outputs = mgr.getDomEventOutputs(id, type);
+		outputs[field] = node;
+		
+		// alert("Registering {" + id + "} {" + type + "} {" + field + "} {" + node + "} {{" + outputs.field + "}} {" + mgr.domEventOutputs + "}");
+
+		eval("elem." + type + " = function(domEvent) { return mgr.doDomEvent(elem, domEvent); };");
+	};
+		
+	// createDomProperty element string -> node
+	// 
+	// Creates a node whose value is echoed a property of an element of the DOM. 
+	// The initial value of the node is set from the DOM and any changes to the 
+	// node's value are copied to the DOM.
+	this.createDomOutput = function(elem, prop, prev) {
+		var id = elem.id;
+
+		var node = new mgr.Behaviour(eval("elem." + prop), prev);
+		
+		node.type = "DomOutput " + id + " " + prop;
+		
+		node.elem = elem;
+		
+		node.setValue = function(newValue) {
+			if(this.value != newValue) {
+				this.value = newValue;
+				eval("this.elem." + prop + " = newValue;");
+				this.propagate(new mgr.Signal(this, newValue, new Date));
+			}
+		};
+
+		return node;		
+	};
+	
+	// filter (a -> boolean) (arrayof node<a>) -> node<b>
+	// 
+	// Creates an event that filters input signals based on a predicate function. 
+	// The function (first parameter) must take a Signal as its single parameter.
+	this.createFilter = function(filterFn, prev) {
+		var node = new mgr.Event(prev);
+		
+		node.type = "Filter " + filterFn;
+		
+		node.onSignal = function(signal) {
+			if(filterFn(signal.value)) {
+				this.value = signal.value;
+				this.propagate(new mgr.Signal(this, signal.value, new Date));
+			}
+		};
+		
+		return node;
+	}
+
+	// createMap (a -> b) (arrayof event<a>) -> event<b>
+	// 
+	// Creates an event that maps input signal values to output signal values 
+	// using a Javascript mapping function. 
+	this.createMap = function(mapFn, prev) {
+		var node = new mgr.Node(prev);
+		
+		node.type = "Map " + mapFn;
+		
+		node.onSignal = function(signal) {
+			var newValue = mapFn(signal.value);
+			
+			if(this.value != newValue) {
+				this.value = newValue;
+				this.propagate(new mgr.Signal(this, newValue, new Date));
+			}
+		};
+		
+		return node;
+	}
+	
+	// createOnce (arrayof event<a>) -> event<a>
+	this.createOnce = function(prev) {
+		var node = new mgr.Event(prev);
+		
+		node.type = "Once";
+		
+		node.fired = false;
+			
+		node.onSignal = function(signal) {
+			if(!this.fired) {
+				this.fired = true;
+				this.propagate(new mgr.Signal(this, signal.value, new Date));
+			}
+		};
+		
+		return node;
+	};
+	
+	// createAlert (arrayof event<a>) -> event<a>
+	//
+	// Creates an event 
+	this.createAlert = function(prev) {
+		var node = new mgr.Event(prev);
+	
+		node.onSignal = function(signal) {
+			alert(signal);
+			this.propagate(new mgr.Signal(this, signal.value, new Date));
+		};
+		
+		return node;
+	}
+	
+	this.createDelay = function(delay, prev) {
+		var node = new mgr.Event(prev);
+		
+		node.type = "Delay " + delay;
+		
+		node.onSignal = function(signal) {
+			window.setTimeout(delay, "this.propagate(new mgr.Signal(this, signal.value, new Date))");
+		};
+		
+		return node;
+	};
+	
+	// createMerge (arrayof event<a>) -> event<a>
+	this.createMerge = function(prev) {
+		var node = new mgr.Event(prev);
+		node.type = "Merge";
+		return node;
+	};
+
+	// createHold (arrayof event<a>) -> behaviour<a>
+	this.createHold = function(init, prev) {
+		var node = new mgr.Behaviour(prev);
+		node.type = "Hold";
+		return node;
+	};
+	
+	// createChanges (arrayof behaviour<a>) -> event<a>
+	this.createChanges = function(prev) {
+		var node = new mgr.Event(prev);
+		node.type = "Changes";
+		return node;
+	};
+	
+	this.createSwitch = function(init, prev) {
+		var node = new mgr.Behaviour(init, prev);
+		
+ 		node.type = "Switch";
+		
+		node.onSignal = function(signal) {
+			this.setValue(!this.value);
+		};
+		
+		return node;
+	};
+	
+	// createFunction (void -> a) (arrayof node<a>) -> behaviour<a>
+	// 
+	// Creates a behaviour whose value is determined by a JavaScript function.
+	// Input signals trigger refreshes, but their values have no effect on the
+	// value of the behaviour. Output signals are only created when the value of
+	// the behaviour changes.
+	this.createFunction = function(valueFn, prev) {
+		var node = new mgr.Behaviour(valueFn(), prev);
+		
+ 		node.type = "Function " + valueFn;
+		
+		node.onSignal = function(signal) {
+			this.setValue(valueFn());
+		};
+		
+		return node;
+	};
+	
+};
new file mode 100644
--- /dev/null
+++ b/js/src/trace-test/tests/reflect/data/jquery-1.4.2.txt
@@ -0,0 +1,6240 @@
+/*!
+ * jQuery JavaScript Library v1.4.2
+ * http://jquery.com/
+ *
+ * Copyright 2010, John Resig
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ * http://jquery.org/license
+ *
+ * Includes Sizzle.js
+ * http://sizzlejs.com/
+ * Copyright 2010, The Dojo Foundation
+ * Released under the MIT, BSD, and GPL Licenses.
+ *
+ * Date: Sat Feb 13 22:33:48 2010 -0500
+ */
+(function( window, undefined ) {
+
+// Define a local copy of jQuery
+var jQuery = function( selector, context ) {
+		// The jQuery object is actually just the init constructor 'enhanced'
+		return new jQuery.fn.init( selector, context );
+	},
+
+	// Map over jQuery in case of overwrite
+	_jQuery = window.jQuery,
+
+	// Map over the $ in case of overwrite
+	_$ = window.$,
+
+	// Use the correct document accordingly with window argument (sandbox)
+	document = window.document,
+
+	// A central reference to the root jQuery(document)
+	rootjQuery,
+
+	// A simple way to check for HTML strings or ID strings
+	// (both of which we optimize for)
+	quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$|^#([\w-]+)$/,
+
+	// Is it a simple selector
+	isSimple = /^.[^:#\[\.,]*$/,
+
+	// Check if a string has a non-whitespace character in it
+	rnotwhite = /\S/,
+
+	// Used for trimming whitespace
+	rtrim = /^(\s|\u00A0)+|(\s|\u00A0)+$/g,
+
+	// Match a standalone tag
+	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
+
+	// Keep a UserAgent string for use with jQuery.browser
+	userAgent = navigator.userAgent,
+
+	// For matching the engine and version of the browser
+	browserMatch,
+	
+	// Has the ready events already been bound?
+	readyBound = false,
+	
+	// The functions to execute on DOM ready
+	readyList = [],
+
+	// The ready event handler
+	DOMContentLoaded,
+
+	// Save a reference to some core methods
+	toString = Object.prototype.toString,
+	hasOwnProperty = Object.prototype.hasOwnProperty,
+	push = Array.prototype.push,
+	slice = Array.prototype.slice,
+	indexOf = Array.prototype.indexOf;
+
+jQuery.fn = jQuery.prototype = {
+	init: function( selector, context ) {
+		var match, elem, ret, doc;
+
+		// Handle $(""), $(null), or $(undefined)
+		if ( !selector ) {
+			return this;
+		}
+
+		// Handle $(DOMElement)
+		if ( selector.nodeType ) {
+			this.context = this[0] = selector;
+			this.length = 1;
+			return this;
+		}
+		
+		// The body element only exists once, optimize finding it
+		if ( selector === "body" && !context ) {
+			this.context = document;
+			this[0] = document.body;
+			this.selector = "body";
+			this.length = 1;
+			return this;
+		}
+
+		// Handle HTML strings
+		if ( typeof selector === "string" ) {
+			// Are we dealing with HTML string or an ID?
+			match = quickExpr.exec( selector );
+
+			// Verify a match, and that no context was specified for #id
+			if ( match && (match[1] || !context) ) {
+
+				// HANDLE: $(html) -> $(array)
+				if ( match[1] ) {
+					doc = (context ? context.ownerDocument || context : document);
+
+					// If a single string is passed in and it's a single tag
+					// just do a createElement and skip the rest
+					ret = rsingleTag.exec( selector );
+
+					if ( ret ) {
+						if ( jQuery.isPlainObject( context ) ) {
+							selector = [ document.createElement( ret[1] ) ];
+							jQuery.fn.attr.call( selector, context, true );
+
+						} else {
+							selector = [ doc.createElement( ret[1] ) ];
+						}
+
+					} else {
+						ret = buildFragment( [ match[1] ], [ doc ] );
+						selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes;
+					}
+					
+					return jQuery.merge( this, selector );
+					
+				// HANDLE: $("#id")
+				} else {
+					elem = document.getElementById( match[2] );
+
+					if ( elem ) {
+						// Handle the case where IE and Opera return items
+						// by name instead of ID
+						if ( elem.id !== match[2] ) {
+							return rootjQuery.find( selector );
+						}
+
+						// Otherwise, we inject the element directly into the jQuery object
+						this.length = 1;
+						this[0] = elem;
+					}
+
+					this.context = document;
+					this.selector = selector;
+					return this;
+				}
+
+			// HANDLE: $("TAG")
+			} else if ( !context && /^\w+$/.test( selector ) ) {
+				this.selector = selector;
+				this.context = document;
+				selector = document.getElementsByTagName( selector );
+				return jQuery.merge( this, selector );
+
+			// HANDLE: $(expr, $(...))
+			} else if ( !context || context.jquery ) {
+				return (context || rootjQuery).find( selector );
+
+			// HANDLE: $(expr, context)
+			// (which is just equivalent to: $(context).find(expr)
+			} else {
+				return jQuery( context ).find( selector );
+			}
+
+		// HANDLE: $(function)
+		// Shortcut for document ready
+		} else if ( jQuery.isFunction( selector ) ) {
+			return rootjQuery.ready( selector );
+		}
+
+		if (selector.selector !== undefined) {
+			this.selector = selector.selector;
+			this.context = selector.context;
+		}
+
+		return jQuery.makeArray( selector, this );
+	},
+
+	// Start with an empty selector
+	selector: "",
+
+	// The current version of jQuery being used
+	jquery: "1.4.2",
+
+	// The default length of a jQuery object is 0
+	length: 0,
+
+	// The number of elements contained in the matched element set
+	size: function() {
+		return this.length;
+	},
+
+	toArray: function() {
+		return slice.call( this, 0 );
+	},
+
+	// Get the Nth element in the matched element set OR
+	// Get the whole matched element set as a clean array
+	get: function( num ) {
+		return num == null ?
+
+			// Return a 'clean' array
+			this.toArray() :
+
+			// Return just the object
+			( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );
+	},
+
+	// Take an array of elements and push it onto the stack
+	// (returning the new matched element set)
+	pushStack: function( elems, name, selector ) {
+		// Build a new jQuery matched element set
+		var ret = jQuery();
+
+		if ( jQuery.isArray( elems ) ) {
+			push.apply( ret, elems );
+		
+		} else {
+			jQuery.merge( ret, elems );
+		}
+
+		// Add the old object onto the stack (as a reference)
+		ret.prevObject = this;
+
+		ret.context = this.context;
+
+		if ( name === "find" ) {
+			ret.selector = this.selector + (this.selector ? " " : "") + selector;
+		} else if ( name ) {
+			ret.selector = this.selector + "." + name + "(" + selector + ")";
+		}
+
+		// Return the newly-formed element set
+		return ret;
+	},
+
+	// Execute a callback for every element in the matched set.
+	// (You can seed the arguments with an array of args, but this is
+	// only used internally.)
+	each: function( callback, args ) {
+		return jQuery.each( this, callback, args );
+	},
+	
+	ready: function( fn ) {
+		// Attach the listeners
+		jQuery.bindReady();
+
+		// If the DOM is already ready
+		if ( jQuery.isReady ) {
+			// Execute the function immediately
+			fn.call( document, jQuery );
+
+		// Otherwise, remember the function for later
+		} else if ( readyList ) {
+			// Add the function to the wait list
+			readyList.push( fn );
+		}
+
+		return this;
+	},
+	
+	eq: function( i ) {
+		return i === -1 ?
+			this.slice( i ) :
+			this.slice( i, +i + 1 );
+	},
+
+	first: function() {
+		return this.eq( 0 );
+	},
+
+	last: function() {
+		return this.eq( -1 );
+	},
+
+	slice: function() {
+		return this.pushStack( slice.apply( this, arguments ),
+			"slice", slice.call(arguments).join(",") );
+	},
+
+	map: function( callback ) {
+		return this.pushStack( jQuery.map(this, function( elem, i ) {
+			return callback.call( elem, i, elem );
+		}));
+	},
+	
+	end: function() {
+		return this.prevObject || jQuery(null);
+	},
+
+	// For internal use only.
+	// Behaves like an Array's method, not like a jQuery method.
+	push: push,
+	sort: [].sort,
+	splice: [].splice
+};
+
+// Give the init function the jQuery prototype for later instantiation
+jQuery.fn.init.prototype = jQuery.fn;
+
+jQuery.extend = jQuery.fn.extend = function() {
+	// copy reference to target object
+	var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy;
+
+	// Handle a deep copy situation
+	if ( typeof target === "boolean" ) {
+		deep = target;
+		target = arguments[1] || {};
+		// skip the boolean and the target
+		i = 2;
+	}
+
+	// Handle case when target is a string or something (possible in deep copy)
+	if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
+		target = {};
+	}
+
+	// extend jQuery itself if only one argument is passed
+	if ( length === i ) {
+		target = this;
+		--i;
+	}
+
+	for ( ; i < length; i++ ) {
+		// Only deal with non-null/undefined values
+		if ( (options = arguments[ i ]) != null ) {
+			// Extend the base object
+			for ( name in options ) {
+				src = target[ name ];
+				copy = options[ name ];
+
+				// Prevent never-ending loop
+				if ( target === copy ) {
+					continue;
+				}
+
+				// Recurse if we're merging object literal values or arrays
+				if ( deep && copy && ( jQuery.isPlainObject(copy) || jQuery.isArray(copy) ) ) {
+					var clone = src && ( jQuery.isPlainObject(src) || jQuery.isArray(src) ) ? src
+						: jQuery.isArray(copy) ? [] : {};
+
+					// Never move original objects, clone them
+					target[ name ] = jQuery.extend( deep, clone, copy );
+
+				// Don't bring in undefined values
+				} else if ( copy !== undefined ) {
+					target[ name ] = copy;
+				}
+			}
+		}
+	}
+
+	// Return the modified object
+	return target;
+};
+
+jQuery.extend({
+	noConflict: function( deep ) {
+		window.$ = _$;
+
+		if ( deep ) {
+			window.jQuery = _jQuery;
+		}
+
+		return jQuery;
+	},
+	
+	// Is the DOM ready to be used? Set to true once it occurs.
+	isReady: false,
+	
+	// Handle when the DOM is ready
+	ready: function() {
+		// Make sure that the DOM is not already loaded
+		if ( !jQuery.isReady ) {
+			// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
+			if ( !document.body ) {
+				return setTimeout( jQuery.ready, 13 );
+			}
+
+			// Remember that the DOM is ready
+			jQuery.isReady = true;
+
+			// If there are functions bound, to execute
+			if ( readyList ) {
+				// Execute all of them
+				var fn, i = 0;
+				while ( (fn = readyList[ i++ ]) ) {
+					fn.call( document, jQuery );
+				}
+
+				// Reset the list of functions
+				readyList = null;
+			}
+
+			// Trigger any bound ready events
+			if ( jQuery.fn.triggerHandler ) {
+				jQuery( document ).triggerHandler( "ready" );
+			}
+		}
+	},
+	
+	bindReady: function() {
+		if ( readyBound ) {
+			return;
+		}
+
+		readyBound = true;
+
+		// Catch cases where $(document).ready() is called after the
+		// browser event has already occurred.
+		if ( document.readyState === "complete" ) {
+			return jQuery.ready();
+		}
+
+		// Mozilla, Opera and webkit nightlies currently support this event
+		if ( document.addEventListener ) {
+			// Use the handy event callback
+			document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
+			
+			// A fallback to window.onload, that will always work
+			window.addEventListener( "load", jQuery.ready, false );
+
+		// If IE event model is used
+		} else if ( document.attachEvent ) {
+			// ensure firing before onload,
+			// maybe late but safe also for iframes
+			document.attachEvent("onreadystatechange", DOMContentLoaded);
+			
+			// A fallback to window.onload, that will always work
+			window.attachEvent( "onload", jQuery.ready );
+
+			// If IE and not a frame
+			// continually check to see if the document is ready
+			var toplevel = false;
+
+			try {
+				toplevel = window.frameElement == null;
+			} catch(e) {}
+
+			if ( document.documentElement.doScroll && toplevel ) {
+				doScrollCheck();
+			}
+		}
+	},
+
+	// See test/unit/core.js for details concerning isFunction.
+	// Since version 1.3, DOM methods and functions like alert
+	// aren't supported. They return false on IE (#2968).
+	isFunction: function( obj ) {
+		return toString.call(obj) === "[object Function]";
+	},
+
+	isArray: function( obj ) {
+		return toString.call(obj) === "[object Array]";
+	},
+
+	isPlainObject: function( obj ) {
+		// Must be an Object.
+		// Because of IE, we also have to check the presence of the constructor property.
+		// Make sure that DOM nodes and window objects don't pass through, as well
+		if ( !obj || toString.call(obj) !== "[object Object]" || obj.nodeType || obj.setInterval ) {
+			return false;
+		}
+		
+		// Not own constructor property must be Object
+		if ( obj.constructor
+			&& !hasOwnProperty.call(obj, "constructor")
+			&& !hasOwnProperty.call(obj.constructor.prototype, "isPrototypeOf") ) {
+			return false;
+		}
+		
+		// Own properties are enumerated firstly, so to speed up,
+		// if last one is own, then all properties are own.
+	
+		var key;
+		for ( key in obj ) {}
+		
+		return key === undefined || hasOwnProperty.call( obj, key );
+	},
+
+	isEmptyObject: function( obj ) {
+		for ( var name in obj ) {
+			return false;
+		}
+		return true;
+	},
+	
+	error: function( msg ) {
+		throw msg;
+	},
+	
+	parseJSON: function( data ) {
+		if ( typeof data !== "string" || !data ) {
+			return null;
+		}
+
+		// Make sure leading/trailing whitespace is removed (IE can't handle it)
+		data = jQuery.trim( data );
+		
+		// Make sure the incoming data is actual JSON
+		// Logic borrowed from http://json.org/json2.js
+		if ( /^[\],:{}\s]*$/.test(data.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, "@")
+			.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, "]")
+			.replace(/(?:^|:|,)(?:\s*\[)+/g, "")) ) {
+
+			// Try to use the native JSON parser first
+			return window.JSON && window.JSON.parse ?
+				window.JSON.parse( data ) :
+				(new Function("return " + data))();
+
+		} else {
+			jQuery.error( "Invalid JSON: " + data );
+		}
+	},
+
+	noop: function() {},
+
+	// Evalulates a script in a global context
+	globalEval: function( data ) {
+		if ( data && rnotwhite.test(data) ) {
+			// Inspired by code by Andrea Giammarchi
+			// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
+			var head = document.getElementsByTagName("head")[0] || document.documentElement,
+				script = document.createElement("script");
+
+			script.type = "text/javascript";
+
+			if ( jQuery.support.scriptEval ) {
+				script.appendChild( document.createTextNode( data ) );
+			} else {
+				script.text = data;
+			}
+
+			// Use insertBefore instead of appendChild to circumvent an IE6 bug.
+			// This arises when a base node is used (#2709).
+			head.insertBefore( script, head.firstChild );
+			head.removeChild( script );
+		}
+	},
+
+	nodeName: function( elem, name ) {
+		return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
+	},
+
+	// args is for internal usage only
+	each: function( object, callback, args ) {
+		var name, i = 0,
+			length = object.length,
+			isObj = length === undefined || jQuery.isFunction(object);
+
+		if ( args ) {
+			if ( isObj ) {
+				for ( name in object ) {
+					if ( callback.apply( object[ name ], args ) === false ) {
+						break;
+					}
+				}
+			} else {
+				for ( ; i < length; ) {
+					if ( callback.apply( object[ i++ ], args ) === false ) {
+						break;
+					}
+				}
+			}
+
+		// A special, fast, case for the most common use of each
+		} else {
+			if ( isObj ) {
+				for ( name in object ) {
+					if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
+						break;
+					}
+				}
+			} else {
+				for ( var value = object[0];
+					i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {}
+			}
+		}
+
+		return object;
+	},
+
+	trim: function( text ) {
+		return (text || "").replace( rtrim, "" );
+	},
+
+	// results is for internal usage only
+	makeArray: function( array, results ) {
+		var ret = results || [];
+
+		if ( array != null ) {
+			// The window, strings (and functions) also have 'length'
+			// The extra typeof function check is to prevent crashes
+			// in Safari 2 (See: #3039)
+			if ( array.length == null || typeof array === "string" || jQuery.isFunction(array) || (typeof array !== "function" && array.setInterval) ) {
+				push.call( ret, array );
+			} else {
+				jQuery.merge( ret, array );
+			}
+		}
+
+		return ret;
+	},
+
+	inArray: function( elem, array ) {
+		if ( array.indexOf ) {
+			return array.indexOf( elem );
+		}
+
+		for ( var i = 0, length = array.length; i < length; i++ ) {
+			if ( array[ i ] === elem ) {
+				return i;
+			}
+		}
+
+		return -1;
+	},
+
+	merge: function( first, second ) {
+		var i = first.length, j = 0;
+
+		if ( typeof second.length === "number" ) {
+			for ( var l = second.length; j < l; j++ ) {
+				first[ i++ ] = second[ j ];
+			}
+		
+		} else {
+			while ( second[j] !== undefined ) {
+				first[ i++ ] = second[ j++ ];
+			}
+		}
+
+		first.length = i;
+
+		return first;
+	},
+
+	grep: function( elems, callback, inv ) {
+		var ret = [];
+
+		// Go through the array, only saving the items
+		// that pass the validator function
+		for ( var i = 0, length = elems.length; i < length; i++ ) {
+			if ( !inv !== !callback( elems[ i ], i ) ) {
+				ret.push( elems[ i ] );
+			}
+		}
+
+		return ret;
+	},
+
+	// arg is for internal usage only
+	map: function( elems, callback, arg ) {
+		var ret = [], value;
+
+		// Go through the array, translating each of the items to their
+		// new value (or values).
+		for ( var i = 0, length = elems.length; i < length; i++ ) {
+			value = callback( elems[ i ], i, arg );
+
+			if ( value != null ) {
+				ret[ ret.length ] = value;
+			}
+		}
+
+		return ret.concat.apply( [], ret );
+	},
+
+	// A global GUID counter for objects
+	guid: 1,
+
+	proxy: function( fn, proxy, thisObject ) {
+		if ( arguments.length === 2 ) {
+			if ( typeof proxy === "string" ) {
+				thisObject = fn;
+				fn = thisObject[ proxy ];
+				proxy = undefined;
+
+			} else if ( proxy && !jQuery.isFunction( proxy ) ) {
+				thisObject = proxy;
+				proxy = undefined;
+			}
+		}
+
+		if ( !proxy && fn ) {
+			proxy = function() {
+				return fn.apply( thisObject || this, arguments );
+			};
+		}
+
+		// Set the guid of unique handler to the same of original handler, so it can be removed
+		if ( fn ) {
+			proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
+		}
+
+		// So proxy can be declared as an argument
+		return proxy;
+	},
+
+	// Use of jQuery.browser is frowned upon.
+	// More details: http://docs.jquery.com/Utilities/jQuery.browser
+	uaMatch: function( ua ) {
+		ua = ua.toLowerCase();
+
+		var match = /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
+			/(opera)(?:.*version)?[ \/]([\w.]+)/.exec( ua ) ||
+			/(msie) ([\w.]+)/.exec( ua ) ||
+			!/compatible/.test( ua ) && /(mozilla)(?:.*? rv:([\w.]+))?/.exec( ua ) ||
+		  	[];
+
+		return { browser: match[1] || "", version: match[2] || "0" };
+	},
+
+	browser: {}
+});
+
+browserMatch = jQuery.uaMatch( userAgent );
+if ( browserMatch.browser ) {
+	jQuery.browser[ browserMatch.browser ] = true;
+	jQuery.browser.version = browserMatch.version;
+}
+
+// Deprecated, use jQuery.browser.webkit instead
+if ( jQuery.browser.webkit ) {
+	jQuery.browser.safari = true;
+}
+
+if ( indexOf ) {
+	jQuery.inArray = function( elem, array ) {
+		return indexOf.call( array, elem );
+	};
+}
+
+// All jQuery objects should point back to these
+rootjQuery = jQuery(document);
+
+// Cleanup functions for the document ready method
+if ( document.addEventListener ) {
+	DOMContentLoaded = function() {
+		document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
+		jQuery.ready();
+	};
+
+} else if ( document.attachEvent ) {
+	DOMContentLoaded = function() {
+		// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
+		if ( document.readyState === "complete" ) {
+			document.detachEvent( "onreadystatechange", DOMContentLoaded );
+			jQuery.ready();
+		}
+	};
+}
+
+// The DOM ready check for Internet Explorer
+function doScrollCheck() {
+	if ( jQuery.isReady ) {
+		return;
+	}
+
+	try {
+		// If IE is used, use the trick by Diego Perini
+		// http://javascript.nwbox.com/IEContentLoaded/
+		document.documentElement.doScroll("left");
+	} catch( error ) {
+		setTimeout( doScrollCheck, 1 );
+		return;
+	}
+
+	// and execute any waiting functions
+	jQuery.ready();
+}
+
+function evalScript( i, elem ) {
+	if ( elem.src ) {
+		jQuery.ajax({
+			url: elem.src,
+			async: false,
+			dataType: "script"
+		});
+	} else {
+		jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );
+	}
+
+	if ( elem.parentNode ) {
+		elem.parentNode.removeChild( elem );
+	}
+}
+
+// Mutifunctional method to get and set values to a collection
+// The value/s can be optionally by executed if its a function
+function access( elems, key, value, exec, fn, pass ) {
+	var length = elems.length;
+	
+	// Setting many attributes
+	if ( typeof key === "object" ) {
+		for ( var k in key ) {
+			access( elems, k, key[k], exec, fn, value );
+		}
+		return elems;
+	}
+	
+	// Setting one attribute
+	if ( value !== undefined ) {
+		// Optionally, function values get executed if exec is true
+		exec = !pass && exec && jQuery.isFunction(value);
+		
+		for ( var i = 0; i < length; i++ ) {
+			fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass );
+		}
+		
+		return elems;
+	}
+	
+	// Getting an attribute
+	return length ? fn( elems[0], key ) : undefined;
+}
+
+function now() {
+	return (new Date).getTime();
+}
+(function() {
+
+	jQuery.support = {};
+
+	var root = document.documentElement,
+		script = document.createElement("script"),
+		div = document.createElement("div"),
+		id = "script" + now();
+
+	div.style.display = "none";
+	div.innerHTML = "   <link/><table></table><a href='/a' style='color:red;float:left;opacity:.55;'>a</a><input type='checkbox'/>";
+
+	var all = div.getElementsByTagName("*"),
+		a = div.getElementsByTagName("a")[0];
+
+	// Can't get basic test support
+	if ( !all || !all.length || !a ) {
+		return;
+	}
+
+	jQuery.support = {
+		// IE strips leading whitespace when .innerHTML is used
+		leadingWhitespace: div.firstChild.nodeType === 3,
+
+		// Make sure that tbody elements aren't automatically inserted
+		// IE will insert them into empty tables
+		tbody: !div.getElementsByTagName("tbody").length,
+
+		// Make sure that link elements get serialized correctly by innerHTML
+		// This requires a wrapper element in IE
+		htmlSerialize: !!div.getElementsByTagName("link").length,
+
+		// Get the style information from getAttribute
+		// (IE uses .cssText insted)
+		style: /red/.test( a.getAttribute("style") ),
+
+		// Make sure that URLs aren't manipulated
+		// (IE normalizes it by default)
+		hrefNormalized: a.getAttribute("href") === "/a",
+
+		// Make sure that element opacity exists
+		// (IE uses filter instead)
+		// Use a regex to work around a WebKit issue. See #5145
+		opacity: /^0.55$/.test( a.style.opacity ),
+
+		// Verify style float existence
+		// (IE uses styleFloat instead of cssFloat)
+		cssFloat: !!a.style.cssFloat,
+
+		// Make sure that if no value is specified for a checkbox
+		// that it defaults to "on".
+		// (WebKit defaults to "" instead)
+		checkOn: div.getElementsByTagName("input")[0].value === "on",
+
+		// Make sure that a selected-by-default option has a working selected property.
+		// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
+		optSelected: document.createElement("select").appendChild( document.createElement("option") ).selected,
+
+		parentNode: div.removeChild( div.appendChild( document.createElement("div") ) ).parentNode === null,
+
+		// Will be defined later
+		deleteExpando: true,
+		checkClone: false,
+		scriptEval: false,
+		noCloneEvent: true,
+		boxModel: null
+	};
+
+	script.type = "text/javascript";
+	try {
+		script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
+	} catch(e) {}
+
+	root.insertBefore( script, root.firstChild );
+
+	// Make sure that the execution of code works by injecting a script
+	// tag with appendChild/createTextNode
+	// (IE doesn't support this, fails, and uses .text instead)
+	if ( window[ id ] ) {
+		jQuery.support.scriptEval = true;
+		delete window[ id ];
+	}
+
+	// Test to see if it's possible to delete an expando from an element
+	// Fails in Internet Explorer
+	try {
+		delete script.test;
+	
+	} catch(e) {
+		jQuery.support.deleteExpando = false;
+	}
+
+	root.removeChild( script );
+
+	if ( div.attachEvent && div.fireEvent ) {
+		div.attachEvent("onclick", function click() {
+			// Cloning a node shouldn't copy over any
+			// bound event handlers (IE does this)
+			jQuery.support.noCloneEvent = false;
+			div.detachEvent("onclick", click);
+		});
+		div.cloneNode(true).fireEvent("onclick");
+	}
+
+	div = document.createElement("div");
+	div.innerHTML = "<input type='radio' name='radiotest' checked='checked'/>";
+
+	var fragment = document.createDocumentFragment();
+	fragment.appendChild( div.firstChild );
+
+	// WebKit doesn't clone checked state correctly in fragments
+	jQuery.support.checkClone = fragment.cloneNode(true).cloneNode(true).lastChild.checked;
+
+	// Figure out if the W3C box model works as expected
+	// document.body must exist before we can do this
+	jQuery(function() {
+		var div = document.createElement("div");
+		div.style.width = div.style.paddingLeft = "1px";
+
+		document.body.appendChild( div );
+		jQuery.boxModel = jQuery.support.boxModel = div.offsetWidth === 2;
+		document.body.removeChild( div ).style.display = 'none';
+
+		div = null;
+	});
+
+	// Technique from Juriy Zaytsev
+	// http://thinkweb2.com/projects/prototype/detecting-event-support-without-browser-sniffing/
+	var eventSupported = function( eventName ) { 
+		var el = document.createElement("div"); 
+		eventName = "on" + eventName; 
+
+		var isSupported = (eventName in el); 
+		if ( !isSupported ) { 
+			el.setAttribute(eventName, "return;"); 
+			isSupported = typeof el[eventName] === "function"; 
+		} 
+		el = null; 
+
+		return isSupported; 
+	};
+	
+	jQuery.support.submitBubbles = eventSupported("submit");
+	jQuery.support.changeBubbles = eventSupported("change");
+
+	// release memory in IE
+	root = script = div = all = a = null;
+})();
+
+jQuery.props = {
+	"for": "htmlFor",
+	"class": "className",
+	readonly: "readOnly",
+	maxlength: "maxLength",
+	cellspacing: "cellSpacing",
+	rowspan: "rowSpan",
+	colspan: "colSpan",
+	tabindex: "tabIndex",
+	usemap: "useMap",
+	frameborder: "frameBorder"
+};
+var expando = "jQuery" + now(), uuid = 0, windowData = {};
+
+jQuery.extend({
+	cache: {},
+	
+	expando:expando,
+
+	// The following elements throw uncatchable exceptions if you
+	// attempt to add expando properties to them.
+	noData: {
+		"embed": true,
+		"object": true,
+		"applet": true
+	},
+
+	data: function( elem, name, data ) {
+		if ( elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()] ) {
+			return;
+		}
+
+		elem = elem == window ?
+			windowData :
+			elem;
+
+		var id = elem[ expando ], cache = jQuery.cache, thisCache;
+
+		if ( !id && typeof name === "string" && data === undefined ) {
+			return null;
+		}
+
+		// Compute a unique ID for the element
+		if ( !id ) { 
+			id = ++uuid;
+		}
+
+		// Avoid generating a new cache unless none exists and we
+		// want to manipulate it.
+		if ( typeof name === "object" ) {
+			elem[ expando ] = id;
+			thisCache = cache[ id ] = jQuery.extend(true, {}, name);
+
+		} else if ( !cache[ id ] ) {
+			elem[ expando ] = id;
+			cache[ id ] = {};
+		}
+
+		thisCache = cache[ id ];
+
+		// Prevent overriding the named cache with undefined values
+		if ( data !== undefined ) {
+			thisCache[ name ] = data;
+		}
+
+		return typeof name === "string" ? thisCache[ name ] : thisCache;
+	},
+
+	removeData: function( elem, name ) {
+		if ( elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()] ) {
+			return;
+		}
+
+		elem = elem == window ?
+			windowData :
+			elem;
+
+		var id = elem[ expando ], cache = jQuery.cache, thisCache = cache[ id ];
+
+		// If we want to remove a specific section of the element's data
+		if ( name ) {
+			if ( thisCache ) {
+				// Remove the section of cache data
+				delete thisCache[ name ];
+
+				// If we've removed all the data, remove the element's cache
+				if ( jQuery.isEmptyObject(thisCache) ) {
+					jQuery.removeData( elem );
+				}
+			}
+
+		// Otherwise, we want to remove all of the element's data
+		} else {
+			if ( jQuery.support.deleteExpando ) {
+				delete elem[ jQuery.expando ];
+
+			} else if ( elem.removeAttribute ) {
+				elem.removeAttribute( jQuery.expando );
+			}
+
+			// Completely remove the data cache
+			delete cache[ id ];
+		}
+	}
+});
+
+jQuery.fn.extend({
+	data: function( key, value ) {
+		if ( typeof key === "undefined" && this.length ) {
+			return jQuery.data( this[0] );
+
+		} else if ( typeof key === "object" ) {
+			return this.each(function() {
+				jQuery.data( this, key );
+			});
+		}
+
+		var parts = key.split(".");
+		parts[1] = parts[1] ? "." + parts[1] : "";
+
+		if ( value === undefined ) {
+			var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
+
+			if ( data === undefined && this.length ) {
+				data = jQuery.data( this[0], key );
+			}
+			return data === undefined && parts[1] ?
+				this.data( parts[0] ) :
+				data;
+		} else {
+			return this.trigger("setData" + parts[1] + "!", [parts[0], value]).each(function() {
+				jQuery.data( this, key, value );
+			});
+		}
+	},
+
+	removeData: function( key ) {
+		return this.each(function() {
+			jQuery.removeData( this, key );
+		});
+	}
+});
+jQuery.extend({
+	queue: function( elem, type, data ) {
+		if ( !elem ) {
+			return;
+		}
+
+		type = (type || "fx") + "queue";
+		var q = jQuery.data( elem, type );
+
+		// Speed up dequeue by getting out quickly if this is just a lookup
+		if ( !data ) {
+			return q || [];
+		}
+
+		if ( !q || jQuery.isArray(data) ) {
+			q = jQuery.data( elem, type, jQuery.makeArray(data) );
+
+		} else {
+			q.push( data );
+		}
+
+		return q;
+	},
+
+	dequeue: function( elem, type ) {
+		type = type || "fx";
+
+		var queue = jQuery.queue( elem, type ), fn = queue.shift();
+
+		// If the fx queue is dequeued, always remove the progress sentinel
+		if ( fn === "inprogress" ) {
+			fn = queue.shift();
+		}
+
+		if ( fn ) {
+			// Add a progress sentinel to prevent the fx queue from being
+			// automatically dequeued
+			if ( type === "fx" ) {
+				queue.unshift("inprogress");
+			}
+
+			fn.call(elem, function() {
+				jQuery.dequeue(elem, type);
+			});
+		}
+	}
+});
+
+jQuery.fn.extend({
+	queue: function( type, data ) {
+		if ( typeof type !== "string" ) {
+			data = type;
+			type = "fx";
+		}
+
+		if ( data === undefined ) {
+			return jQuery.queue( this[0], type );
+		}
+		return this.each(function( i, elem ) {
+			var queue = jQuery.queue( this, type, data );
+
+			if ( type === "fx" && queue[0] !== "inprogress" ) {
+				jQuery.dequeue( this, type );
+			}
+		});
+	},
+	dequeue: function( type ) {
+		return this.each(function() {
+			jQuery.dequeue( this, type );
+		});
+	},
+
+	// Based off of the plugin by Clint Helfers, with permission.
+	// http://blindsignals.com/index.php/2009/07/jquery-delay/
+	delay: function( time, type ) {
+		time = jQuery.fx ? jQuery.fx.speeds[time] || time : time;
+		type = type || "fx";
+
+		return this.queue( type, function() {
+			var elem = this;
+			setTimeout(function() {
+				jQuery.dequeue( elem, type );
+			}, time );
+		});
+	},
+
+	clearQueue: function( type ) {
+		return this.queue( type || "fx", [] );
+	}
+});
+var rclass = /[\n\t]/g,
+	rspace = /\s+/,
+	rreturn = /\r/g,
+	rspecialurl = /href|src|style/,
+	rtype = /(button|input)/i,
+	rfocusable = /(button|input|object|select|textarea)/i,
+	rclickable = /^(a|area)$/i,
+	rradiocheck = /radio|checkbox/;
+
+jQuery.fn.extend({
+	attr: function( name, value ) {
+		return access( this, name, value, true, jQuery.attr );
+	},
+
+	removeAttr: function( name, fn ) {
+		return this.each(function(){
+			jQuery.attr( this, name, "" );
+			if ( this.nodeType === 1 ) {
+				this.removeAttribute( name );
+			}
+		});
+	},
+
+	addClass: function( value ) {
+		if ( jQuery.isFunction(value) ) {
+			return this.each(function(i) {
+				var self = jQuery(this);
+				self.addClass( value.call(this, i, self.attr("class")) );
+			});
+		}
+
+		if ( value && typeof value === "string" ) {
+			var classNames = (value || "").split( rspace );
+
+			for ( var i = 0, l = this.length; i < l; i++ ) {
+				var elem = this[i];
+
+				if ( elem.nodeType === 1 ) {
+					if ( !elem.className ) {
+						elem.className = value;
+
+					} else {
+						var className = " " + elem.className + " ", setClass = elem.className;
+						for ( var c = 0, cl = classNames.length; c < cl; c++ ) {
+							if ( className.indexOf( " " + classNames[c] + " " ) < 0 ) {
+								setClass += " " + classNames[c];
+							}
+						}
+						elem.className = jQuery.trim( setClass );
+					}
+				}
+			}
+		}
+
+		return this;
+	},
+
+	removeClass: function( value ) {
+		if ( jQuery.isFunction(value) ) {
+			return this.each(function(i) {
+				var self = jQuery(this);
+				self.removeClass( value.call(this, i, self.attr("class")) );
+			});
+		}
+
+		if ( (value && typeof value === "string") || value === undefined ) {
+			var classNames = (value || "").split(rspace);
+
+			for ( var i = 0, l = this.length; i < l; i++ ) {
+				var elem = this[i];
+
+				if ( elem.nodeType === 1 && elem.className ) {
+					if ( value ) {
+						var className = (" " + elem.className + " ").replace(rclass, " ");
+						for ( var c = 0, cl = classNames.length; c < cl; c++ ) {
+							className = className.replace(" " + classNames[c] + " ", " ");
+						}
+						elem.className = jQuery.trim( className );
+
+					} else {
+						elem.className = "";
+					}
+				}
+			}
+		}
+
+		return this;
+	},
+
+	toggleClass: function( value, stateVal ) {
+		var type = typeof value, isBool = typeof stateVal === "boolean";
+
+		if ( jQuery.isFunction( value ) ) {
+			return this.each(function(i) {
+				var self = jQuery(this);
+				self.toggleClass( value.call(this, i, self.attr("class"), stateVal), stateVal );
+			});
+		}
+
+		return this.each(function() {
+			if ( type === "string" ) {
+				// toggle individual class names
+				var className, i = 0, self = jQuery(this),
+					state = stateVal,
+					classNames = value.split( rspace );
+
+				while ( (className = classNames[ i++ ]) ) {
+					// check each className given, space seperated list
+					state = isBool ? state : !self.hasClass( className );
+					self[ state ? "addClass" : "removeClass" ]( className );
+				}
+
+			} else if ( type === "undefined" || type === "boolean" ) {
+				if ( this.className ) {
+					// store className if set
+					jQuery.data( this, "__className__", this.className );
+				}
+
+				// toggle whole className
+				this.className = this.className || value === false ? "" : jQuery.data( this, "__className__" ) || "";
+			}
+		});
+	},
+
+	hasClass: function( selector ) {
+		var className = " " + selector + " ";
+		for ( var i = 0, l = this.length; i < l; i++ ) {
+			if ( (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) > -1 ) {
+				return true;
+			}
+		}
+
+		return false;
+	},
+
+	val: function( value ) {
+		if ( value === undefined ) {
+			var elem = this[0];
+
+			if ( elem ) {
+				if ( jQuery.nodeName( elem, "option" ) ) {
+					return (elem.attributes.value || {}).specified ? elem.value : elem.text;
+				}
+
+				// We need to handle select boxes special
+				if ( jQuery.nodeName( elem, "select" ) ) {
+					var index = elem.selectedIndex,
+						values = [],
+						options = elem.options,
+						one = elem.type === "select-one";
+
+					// Nothing was selected
+					if ( index < 0 ) {
+						return null;
+					}
+
+					// Loop through all the selected options
+					for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
+						var option = options[ i ];
+
+						if ( option.selected ) {
+							// Get the specifc value for the option
+							value = jQuery(option).val();
+
+							// We don't need an array for one selects
+							if ( one ) {
+								return value;
+							}
+
+							// Multi-Selects return an array
+							values.push( value );
+						}
+					}
+
+					return values;
+				}
+
+				// Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified
+				if ( rradiocheck.test( elem.type ) && !jQuery.support.checkOn ) {
+					return elem.getAttribute("value") === null ? "on" : elem.value;
+				}
+				
+
+				// Everything else, we just grab the value
+				return (elem.value || "").replace(rreturn, "");
+
+			}
+
+			return undefined;
+		}
+
+		var isFunction = jQuery.isFunction(value);
+
+		return this.each(function(i) {
+			var self = jQuery(this), val = value;
+
+			if ( this.nodeType !== 1 ) {
+				return;
+			}
+
+			if ( isFunction ) {
+				val = value.call(this, i, self.val());
+			}
+
+			// Typecast each time if the value is a Function and the appended
+			// value is therefore different each time.
+			if ( typeof val === "number" ) {
+				val += "";
+			}
+
+			if ( jQuery.isArray(val) && rradiocheck.test( this.type ) ) {
+				this.checked = jQuery.inArray( self.val(), val ) >= 0;
+
+			} else if ( jQuery.nodeName( this, "select" ) ) {
+				var values = jQuery.makeArray(val);
+
+				jQuery( "option", this ).each(function() {
+					this.selected = jQuery.inArray( jQuery(this).val(), values ) >= 0;
+				});
+
+				if ( !values.length ) {
+					this.selectedIndex = -1;
+				}
+
+			} else {
+				this.value = val;
+			}
+		});
+	}
+});
+
+jQuery.extend({
+	attrFn: {
+		val: true,
+		css: true,
+		html: true,
+		text: true,
+		data: true,
+		width: true,
+		height: true,
+		offset: true
+	},
+		
+	attr: function( elem, name, value, pass ) {
+		// don't set attributes on text and comment nodes
+		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 ) {
+			return undefined;
+		}
+
+		if ( pass && name in jQuery.attrFn ) {
+			return jQuery(elem)[name](value);
+		}
+
+		var notxml = elem.nodeType !== 1 || !jQuery.isXMLDoc( elem ),
+			// Whether we are setting (or getting)
+			set = value !== undefined;
+
+		// Try to normalize/fix the name
+		name = notxml && jQuery.props[ name ] || name;
+
+		// Only do all the following if this is a node (faster for style)
+		if ( elem.nodeType === 1 ) {
+			// These attributes require special treatment
+			var special = rspecialurl.test( name );
+
+			// Safari mis-reports the default selected property of an option
+			// Accessing the parent's selectedIndex property fixes it
+			if ( name === "selected" && !jQuery.support.optSelected ) {
+				var parent = elem.parentNode;
+				if ( parent ) {
+					parent.selectedIndex;
+	
+					// Make sure that it also works with optgroups, see #5701
+					if ( parent.parentNode ) {
+						parent.parentNode.selectedIndex;
+					}
+				}
+			}
+
+			// If applicable, access the attribute via the DOM 0 way
+			if ( name in elem && notxml && !special ) {
+				if ( set ) {
+					// We can't allow the type property to be changed (since it causes problems in IE)
+					if ( name === "type" && rtype.test( elem.nodeName ) && elem.parentNode ) {
+						jQuery.error( "type property can't be changed" );
+					}
+
+					elem[ name ] = value;
+				}
+
+				// browsers index elements by id/name on forms, give priority to attributes.
+				if ( jQuery.nodeName( elem, "form" ) && elem.getAttributeNode(name) ) {
+					return elem.getAttributeNode( name ).nodeValue;
+				}
+
+				// elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
+				// http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+				if ( name === "tabIndex" ) {
+					var attributeNode = elem.getAttributeNode( "tabIndex" );
+
+					return attributeNode && attributeNode.specified ?
+						attributeNode.value :
+						rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
+							0 :
+							undefined;
+				}
+
+				return elem[ name ];
+			}
+
+			if ( !jQuery.support.style && notxml && name === "style" ) {
+				if ( set ) {
+					elem.style.cssText = "" + value;
+				}
+
+				return elem.style.cssText;
+			}
+
+			if ( set ) {
+				// convert the value to a string (all browsers do this but IE) see #1070
+				elem.setAttribute( name, "" + value );
+			}
+
+			var attr = !jQuery.support.hrefNormalized && notxml && special ?
+					// Some attributes require a special call on IE
+					elem.getAttribute( name, 2 ) :
+					elem.getAttribute( name );
+
+			// Non-existent attributes return null, we normalize to undefined
+			return attr === null ? undefined : attr;
+		}
+
+		// elem is actually elem.style ... set the style
+		// Using attr for specific style information is now deprecated. Use style instead.
+		return jQuery.style( elem, name, value );
+	}
+});
+var rnamespaces = /\.(.*)$/,
+	fcleanup = function( nm ) {
+		return nm.replace(/[^\w\s\.\|`]/g, function( ch ) {
+			return "\\" + ch;
+		});
+	};
+
+/*
+ * A number of helper functions used for managing events.
+ * Many of the ideas behind this code originated from
+ * Dean Edwards' addEvent library.
+ */
+jQuery.event = {
+
+	// Bind an event to an element
+	// Original by Dean Edwards
+	add: function( elem, types, handler, data ) {
+		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+			return;
+		}
+
+		// For whatever reason, IE has trouble passing the window object
+		// around, causing it to be cloned in the process
+		if ( elem.setInterval && ( elem !== window && !elem.frameElement ) ) {
+			elem = window;
+		}
+
+		var handleObjIn, handleObj;
+
+		if ( handler.handler ) {
+			handleObjIn = handler;
+			handler = handleObjIn.handler;
+		}
+
+		// Make sure that the function being executed has a unique ID
+		if ( !handler.guid ) {
+			handler.guid = jQuery.guid++;
+		}
+
+		// Init the element's event structure
+		var elemData = jQuery.data( elem );
+
+		// If no elemData is found then we must be trying to bind to one of the
+		// banned noData elements
+		if ( !elemData ) {
+			return;
+		}
+
+		var events = elemData.events = elemData.events || {},
+			eventHandle = elemData.handle, eventHandle;
+
+		if ( !eventHandle ) {
+			elemData.handle = eventHandle = function() {
+				// Handle the second event of a trigger and when
+				// an event is called after a page has unloaded
+				return typeof jQuery !== "undefined" && !jQuery.event.triggered ?
+					jQuery.event.handle.apply( eventHandle.elem, arguments ) :
+					undefined;
+			};
+		}
+
+		// Add elem as a property of the handle function
+		// This is to prevent a memory leak with non-native events in IE.
+		eventHandle.elem = elem;
+
+		// Handle multiple events separated by a space
+		// jQuery(...).bind("mouseover mouseout", fn);
+		types = types.split(" ");
+
+		var type, i = 0, namespaces;
+
+		while ( (type = types[ i++ ]) ) {
+			handleObj = handleObjIn ?
+				jQuery.extend({}, handleObjIn) :
+				{ handler: handler, data: data };
+
+			// Namespaced event handlers
+			if ( type.indexOf(".") > -1 ) {
+				namespaces = type.split(".");
+				type = namespaces.shift();
+				handleObj.namespace = namespaces.slice(0).sort().join(".");
+
+			} else {
+				namespaces = [];
+				handleObj.namespace = "";
+			}
+
+			handleObj.type = type;
+			handleObj.guid = handler.guid;
+
+			// Get the current list of functions bound to this event
+			var handlers = events[ type ],
+				special = jQuery.event.special[ type ] || {};
+
+			// Init the event handler queue
+			if ( !handlers ) {
+				handlers = events[ type ] = [];
+
+				// Check for a special event handler
+				// Only use addEventListener/attachEvent if the special
+				// events handler returns false
+				if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+					// Bind the global event handler to the element
+					if ( elem.addEventListener ) {
+						elem.addEventListener( type, eventHandle, false );
+
+					} else if ( elem.attachEvent ) {
+						elem.attachEvent( "on" + type, eventHandle );
+					}
+				}
+			}
+			
+			if ( special.add ) { 
+				special.add.call( elem, handleObj ); 
+
+				if ( !handleObj.handler.guid ) {
+					handleObj.handler.guid = handler.guid;
+				}
+			}
+
+			// Add the function to the element's handler list
+			handlers.push( handleObj );
+
+			// Keep track of which events have been used, for global triggering
+			jQuery.event.global[ type ] = true;
+		}
+
+		// Nullify elem to prevent memory leaks in IE
+		elem = null;
+	},
+
+	global: {},
+
+	// Detach an event or set of events from an element
+	remove: function( elem, types, handler, pos ) {
+		// don't do events on text and comment nodes
+		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+			return;
+		}
+
+		var ret, type, fn, i = 0, all, namespaces, namespace, special, eventType, handleObj, origType,
+			elemData = jQuery.data( elem ),
+			events = elemData && elemData.events;
+
+		if ( !elemData || !events ) {
+			return;
+		}
+
+		// types is actually an event object here
+		if ( types && types.type ) {
+			handler = types.handler;
+			types = types.type;
+		}
+
+		// Unbind all events for the element
+		if ( !types || typeof types === "string" && types.charAt(0) === "." ) {
+			types = types || "";
+
+			for ( type in events ) {
+				jQuery.event.remove( elem, type + types );
+			}
+
+			return;
+		}
+
+		// Handle multiple events separated by a space
+		// jQuery(...).unbind("mouseover mouseout", fn);
+		types = types.split(" ");
+
+		while ( (type = types[ i++ ]) ) {
+			origType = type;
+			handleObj = null;
+			all = type.indexOf(".") < 0;
+			namespaces = [];
+
+			if ( !all ) {
+				// Namespaced event handlers
+				namespaces = type.split(".");
+				type = namespaces.shift();
+
+				namespace = new RegExp("(^|\\.)" + 
+					jQuery.map( namespaces.slice(0).sort(), fcleanup ).join("\\.(?:.*\\.)?") + "(\\.|$)")
+			}
+
+			eventType = events[ type ];
+
+			if ( !eventType ) {
+				continue;
+			}
+
+			if ( !handler ) {
+				for ( var j = 0; j < eventType.length; j++ ) {
+					handleObj = eventType[ j ];
+
+					if ( all || namespace.test( handleObj.namespace ) ) {
+						jQuery.event.remove( elem, origType, handleObj.handler, j );
+						eventType.splice( j--, 1 );
+					}
+				}
+
+				continue;
+			}
+
+			special = jQuery.event.special[ type ] || {};
+
+			for ( var j = pos || 0; j < eventType.length; j++ ) {
+				handleObj = eventType[ j ];
+
+				if ( handler.guid === handleObj.guid ) {
+					// remove the given handler for the given type
+					if ( all || namespace.test( handleObj.namespace ) ) {
+						if ( pos == null ) {
+							eventType.splice( j--, 1 );
+						}
+
+						if ( special.remove ) {
+							special.remove.call( elem, handleObj );
+						}
+					}
+
+					if ( pos != null ) {
+						break;
+					}
+				}
+			}
+
+			// remove generic event handler if no more handlers exist
+			if ( eventType.length === 0 || pos != null && eventType.length === 1 ) {
+				if ( !special.teardown || special.teardown.call( elem, namespaces ) === false ) {
+					removeEvent( elem, type, elemData.handle );
+				}
+
+				ret = null;
+				delete events[ type ];
+			}
+		}
+
+		// Remove the expando if it's no longer used
+		if ( jQuery.isEmptyObject( events ) ) {
+			var handle = elemData.handle;
+			if ( handle ) {
+				handle.elem = null;
+			}
+
+			delete elemData.events;
+			delete elemData.handle;
+
+			if ( jQuery.isEmptyObject( elemData ) ) {
+				jQuery.removeData( elem );
+			}
+		}
+	},
+
+	// bubbling is internal
+	trigger: function( event, data, elem /*, bubbling */ ) {
+		// Event object or event type
+		var type = event.type || event,
+			bubbling = arguments[3];
+
+		if ( !bubbling ) {
+			event = typeof event === "object" ?
+				// jQuery.Event object
+				event[expando] ? event :
+				// Object literal
+				jQuery.extend( jQuery.Event(type), event ) :
+				// Just the event type (string)
+				jQuery.Event(type);
+
+			if ( type.indexOf("!") >= 0 ) {
+				event.type = type = type.slice(0, -1);
+				event.exclusive = true;
+			}
+
+			// Handle a global trigger
+			if ( !elem ) {
+				// Don't bubble custom events when global (to avoid too much overhead)
+				event.stopPropagation();
+
+				// Only trigger if we've ever bound an event for it
+				if ( jQuery.event.global[ type ] ) {
+					jQuery.each( jQuery.cache, function() {
+						if ( this.events && this.events[type] ) {
+							jQuery.event.trigger( event, data, this.handle.elem );
+						}
+					});
+				}
+			}
+
+			// Handle triggering a single element
+
+			// don't do events on text and comment nodes
+			if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 ) {
+				return undefined;
+			}
+
+			// Clean up in case it is reused
+			event.result = undefined;
+			event.target = elem;
+
+			// Clone the incoming data, if any
+			data = jQuery.makeArray( data );
+			data.unshift( event );
+		}
+
+		event.currentTarget = elem;
+
+		// Trigger the event, it is assumed that "handle" is a function
+		var handle = jQuery.data( elem, "handle" );
+		if ( handle ) {
+			handle.apply( elem, data );
+		}
+
+		var parent = elem.parentNode || elem.ownerDocument;
+
+		// Trigger an inline bound script
+		try {
+			if ( !(elem && elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()]) ) {
+				if ( elem[ "on" + type ] && elem[ "on" + type ].apply( elem, data ) === false ) {
+					event.result = false;
+				}
+			}
+
+		// prevent IE from throwing an error for some elements with some event types, see #3533
+		} catch (e) {}
+
+		if ( !event.isPropagationStopped() && parent ) {
+			jQuery.event.trigger( event, data, parent, true );
+
+		} else if ( !event.isDefaultPrevented() ) {
+			var target = event.target, old,
+				isClick = jQuery.nodeName(target, "a") && type === "click",
+				special = jQuery.event.special[ type ] || {};
+
+			if ( (!special._default || special._default.call( elem, event ) === false) && 
+				!isClick && !(target && target.nodeName && jQuery.noData[target.nodeName.toLowerCase()]) ) {
+
+				try {
+					if ( target[ type ] ) {
+						// Make sure that we don't accidentally re-trigger the onFOO events
+						old = target[ "on" + type ];
+
+						if ( old ) {
+							target[ "on" + type ] = null;
+						}
+
+						jQuery.event.triggered = true;
+						target[ type ]();
+					}
+
+				// prevent IE from throwing an error for some elements with some event types, see #3533
+				} catch (e) {}
+
+				if ( old ) {
+					target[ "on" + type ] = old;
+				}
+
+				jQuery.event.triggered = false;
+			}
+		}
+	},
+
+	handle: function( event ) {
+		var all, handlers, namespaces, namespace, events;
+
+		event = arguments[0] = jQuery.event.fix( event || window.event );
+		event.currentTarget = this;
+
+		// Namespaced event handlers
+		all = event.type.indexOf(".") < 0 && !event.exclusive;
+
+		if ( !all ) {
+			namespaces = event.type.split(".");
+			event.type = namespaces.shift();
+			namespace = new RegExp("(^|\\.)" + namespaces.slice(0).sort().join("\\.(?:.*\\.)?") + "(\\.|$)");
+		}
+
+		var events = jQuery.data(this, "events"), handlers = events[ event.type ];
+
+		if ( events && handlers ) {
+			// Clone the handlers to prevent manipulation
+			handlers = handlers.slice(0);
+
+			for ( var j = 0, l = handlers.length; j < l; j++ ) {
+				var handleObj = handlers[ j ];
+
+				// Filter the functions by class
+				if ( all || namespace.test( handleObj.namespace ) ) {
+					// Pass in a reference to the handler function itself
+					// So that we can later remove it
+					event.handler = handleObj.handler;
+					event.data = handleObj.data;
+					event.handleObj = handleObj;
+	
+					var ret = handleObj.handler.apply( this, arguments );
+
+					if ( ret !== undefined ) {
+						event.result = ret;
+						if ( ret === false ) {
+							event.preventDefault();
+							event.stopPropagation();
+						}
+					}
+
+					if ( event.isImmediatePropagationStopped() ) {
+						break;
+					}
+				}
+			}
+		}
+
+		return event.result;
+	},
+
+	props: "altKey attrChange attrName bubbles button cancelable charCode clientX clientY ctrlKey currentTarget data detail eventPhase fromElement handler keyCode layerX layerY metaKey newValue offsetX offsetY originalTarget pageX pageY prevValue relatedNode relatedTarget screenX screenY shiftKey srcElement target toElement view wheelDelta which".split(" "),
+
+	fix: function( event ) {
+		if ( event[ expando ] ) {
+			return event;
+		}
+
+		// store a copy of the original event object
+		// and "clone" to set read-only properties
+		var originalEvent = event;
+		event = jQuery.Event( originalEvent );
+
+		for ( var i = this.props.length, prop; i; ) {
+			prop = this.props[ --i ];
+			event[ prop ] = originalEvent[ prop ];
+		}
+
+		// Fix target property, if necessary
+		if ( !event.target ) {
+			event.target = event.srcElement || document; // Fixes #1925 where srcElement might not be defined either
+		}
+
+		// check if target is a textnode (safari)
+		if ( event.target.nodeType === 3 ) {
+			event.target = event.target.parentNode;
+		}
+
+		// Add relatedTarget, if necessary
+		if ( !event.relatedTarget && event.fromElement ) {
+			event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+		}
+
+		// Calculate pageX/Y if missing and clientX/Y available
+		if ( event.pageX == null && event.clientX != null ) {
+			var doc = document.documentElement, body = document.body;
+			event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+			event.pageY = event.clientY + (doc && doc.scrollTop  || body && body.scrollTop  || 0) - (doc && doc.clientTop  || body && body.clientTop  || 0);
+		}
+
+		// Add which for key events
+		if ( !event.which && ((event.charCode || event.charCode === 0) ? event.charCode : event.keyCode) ) {
+			event.which = event.charCode || event.keyCode;
+		}
+
+		// Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
+		if ( !event.metaKey && event.ctrlKey ) {
+			event.metaKey = event.ctrlKey;
+		}
+
+		// Add which for click: 1 === left; 2 === middle; 3 === right
+		// Note: button is not normalized, so don't use it
+		if ( !event.which && event.button !== undefined ) {
+			event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));
+		}
+
+		return event;
+	},
+
+	// Deprecated, use jQuery.guid instead
+	guid: 1E8,
+
+	// Deprecated, use jQuery.proxy instead
+	proxy: jQuery.proxy,
+
+	special: {
+		ready: {
+			// Make sure the ready event is setup
+			setup: jQuery.bindReady,
+			teardown: jQuery.noop
+		},
+
+		live: {
+			add: function( handleObj ) {
+				jQuery.event.add( this, handleObj.origType, jQuery.extend({}, handleObj, {handler: liveHandler}) ); 
+			},
+
+			remove: function( handleObj ) {
+				var remove = true,
+					type = handleObj.origType.replace(rnamespaces, "");
+				
+				jQuery.each( jQuery.data(this, "events").live || [], function() {
+					if ( type === this.origType.replace(rnamespaces, "") ) {
+						remove = false;
+						return false;
+					}
+				});
+
+				if ( remove ) {
+					jQuery.event.remove( this, handleObj.origType, liveHandler );
+				}
+			}
+
+		},
+
+		beforeunload: {
+			setup: function( data, namespaces, eventHandle ) {
+				// We only want to do this special case on windows
+				if ( this.setInterval ) {
+					this.onbeforeunload = eventHandle;
+				}
+
+				return false;
+			},
+			teardown: function( namespaces, eventHandle ) {
+				if ( this.onbeforeunload === eventHandle ) {
+					this.onbeforeunload = null;
+				}
+			}
+		}
+	}
+};
+
+var removeEvent = document.removeEventListener ?
+	function( elem, type, handle ) {
+		elem.removeEventListener( type, handle, false );
+	} : 
+	function( elem, type, handle ) {
+		elem.detachEvent( "on" + type, handle );
+	};
+
+jQuery.Event = function( src ) {
+	// Allow instantiation without the 'new' keyword
+	if ( !this.preventDefault ) {
+		return new jQuery.Event( src );
+	}
+
+	// Event object
+	if ( src && src.type ) {
+		this.originalEvent = src;
+		this.type = src.type;
+	// Event type
+	} else {
+		this.type = src;
+	}
+
+	// timeStamp is buggy for some events on Firefox(#3843)
+	// So we won't rely on the native value
+	this.timeStamp = now();
+
+	// Mark it as fixed
+	this[ expando ] = true;
+};
+
+function returnFalse() {
+	return false;
+}
+function returnTrue() {
+	return true;
+}
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+	preventDefault: function() {
+		this.isDefaultPrevented = returnTrue;
+
+		var e = this.originalEvent;
+		if ( !e ) {
+			return;
+		}
+		
+		// if preventDefault exists run it on the original event
+		if ( e.preventDefault ) {
+			e.preventDefault();
+		}
+		// otherwise set the returnValue property of the original event to false (IE)
+		e.returnValue = false;
+	},
+	stopPropagation: function() {
+		this.isPropagationStopped = returnTrue;
+
+		var e = this.originalEvent;
+		if ( !e ) {
+			return;
+		}
+		// if stopPropagation exists run it on the original event
+		if ( e.stopPropagation ) {
+			e.stopPropagation();
+		}
+		// otherwise set the cancelBubble property of the original event to true (IE)
+		e.cancelBubble = true;
+	},
+	stopImmediatePropagation: function() {
+		this.isImmediatePropagationStopped = returnTrue;
+		this.stopPropagation();
+	},
+	isDefaultPrevented: returnFalse,
+	isPropagationStopped: returnFalse,
+	isImmediatePropagationStopped: returnFalse
+};
+
+// Checks if an event happened on an element within another element
+// Used in jQuery.event.special.mouseenter and mouseleave handlers
+var withinElement = function( event ) {
+	// Check if mouse(over|out) are still within the same parent element
+	var parent = event.relatedTarget;
+
+	// Firefox sometimes assigns relatedTarget a XUL element
+	// which we cannot access the parentNode property of
+	try {
+		// Traverse up the tree
+		while ( parent && parent !== this ) {
+			parent = parent.parentNode;
+		}
+
+		if ( parent !== this ) {
+			// set the correct event type
+			event.type = event.data;
+
+			// handle event if we actually just moused on to a non sub-element
+			jQuery.event.handle.apply( this, arguments );
+		}
+
+	// assuming we've left the element since we most likely mousedover a xul element
+	} catch(e) { }
+},
+
+// In case of event delegation, we only need to rename the event.type,
+// liveHandler will take care of the rest.
+delegate = function( event ) {
+	event.type = event.data;
+	jQuery.event.handle.apply( this, arguments );
+};
+
+// Create mouseenter and mouseleave events
+jQuery.each({
+	mouseenter: "mouseover",
+	mouseleave: "mouseout"
+}, function( orig, fix ) {
+	jQuery.event.special[ orig ] = {
+		setup: function( data ) {
+			jQuery.event.add( this, fix, data && data.selector ? delegate : withinElement, orig );
+		},
+		teardown: function( data ) {
+			jQuery.event.remove( this, fix, data && data.selector ? delegate : withinElement );
+		}
+	};
+});
+
+// submit delegation
+if ( !jQuery.support.submitBubbles ) {
+
+	jQuery.event.special.submit = {
+		setup: function( data, namespaces ) {
+			if ( this.nodeName.toLowerCase() !== "form" ) {
+				jQuery.event.add(this, "click.specialSubmit", function( e ) {
+					var elem = e.target, type = elem.type;
+
+					if ( (type === "submit" || type === "image") && jQuery( elem ).closest("form").length ) {
+						return trigger( "submit", this, arguments );
+					}
+				});
+	 
+				jQuery.event.add(this, "keypress.specialSubmit", function( e ) {
+					var elem = e.target, type = elem.type;
+
+					if ( (type === "text" || type === "password") && jQuery( elem ).closest("form").length && e.keyCode === 13 ) {
+						return trigger( "submit", this, arguments );
+					}
+				});
+
+			} else {
+				return false;
+			}
+		},
+
+		teardown: function( namespaces ) {
+			jQuery.event.remove( this, ".specialSubmit" );
+		}
+	};
+
+}
+
+// change delegation, happens here so we have bind.
+if ( !jQuery.support.changeBubbles ) {
+
+	var formElems = /textarea|input|select/i,
+
+	changeFilters,
+
+	getVal = function( elem ) {
+		var type = elem.type, val = elem.value;
+
+		if ( type === "radio" || type === "checkbox" ) {
+			val = elem.checked;
+
+		} else if ( type === "select-multiple" ) {
+			val = elem.selectedIndex > -1 ?
+				jQuery.map( elem.options, function( elem ) {
+					return elem.selected;
+				}).join("-") :
+				"";
+
+		} else if ( elem.nodeName.toLowerCase() === "select" ) {
+			val = elem.selectedIndex;
+		}
+
+		return val;
+	},
+
+	testChange = function testChange( e ) {
+		var elem = e.target, data, val;
+
+		if ( !formElems.test( elem.nodeName ) || elem.readOnly ) {
+			return;
+		}
+
+		data = jQuery.data( elem, "_change_data" );
+		val = getVal(elem);
+
+		// the current data will be also retrieved by beforeactivate
+		if ( e.type !== "focusout" || elem.type !== "radio" ) {
+			jQuery.data( elem, "_change_data", val );
+		}
+		
+		if ( data === undefined || val === data ) {
+			return;
+		}
+
+		if ( data != null || val ) {
+			e.type = "change";
+			return jQuery.event.trigger( e, arguments[1], elem );
+		}
+	};
+
+	jQuery.event.special.change = {
+		filters: {
+			focusout: testChange, 
+
+			click: function( e ) {
+				var elem = e.target, type = elem.type;
+
+				if ( type === "radio" || type === "checkbox" || elem.nodeName.toLowerCase() === "select" ) {
+					return testChange.call( this, e );
+				}
+			},
+
+			// Change has to be called before submit
+			// Keydown will be called before keypress, which is used in submit-event delegation
+			keydown: function( e ) {
+				var elem = e.target, type = elem.type;
+
+				if ( (e.keyCode === 13 && elem.nodeName.toLowerCase() !== "textarea") ||
+					(e.keyCode === 32 && (type === "checkbox" || type === "radio")) ||
+					type === "select-multiple" ) {
+					return testChange.call( this, e );
+				}
+			},
+
+			// Beforeactivate happens also before the previous element is blurred
+			// with this event you can't trigger a change event, but you can store
+			// information/focus[in] is not needed anymore
+			beforeactivate: function( e ) {
+				var elem = e.target;
+				jQuery.data( elem, "_change_data", getVal(elem) );
+			}
+		},
+
+		setup: function( data, namespaces ) {
+			if ( this.type === "file" ) {
+				return false;
+			}
+
+			for ( var type in changeFilters ) {
+				jQuery.event.add( this, type + ".specialChange", changeFilters[type] );
+			}
+
+			return formElems.test( this.nodeName );
+		},
+
+		teardown: function( namespaces ) {
+			jQuery.event.remove( this, ".specialChange" );
+
+			return formElems.test( this.nodeName );
+		}
+	};
+
+	changeFilters = jQuery.event.special.change.filters;
+}
+
+function trigger( type, elem, args ) {
+	args[0].type = type;
+	return jQuery.event.handle.apply( elem, args );
+}
+
+// Create "bubbling" focus and blur events
+if ( document.addEventListener ) {
+	jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+		jQuery.event.special[ fix ] = {
+			setup: function() {
+				this.addEventListener( orig, handler, true );
+			}, 
+			teardown: function() { 
+				this.removeEventListener( orig, handler, true );
+			}
+		};
+
+		function handler( e ) { 
+			e = jQuery.event.fix( e );
+			e.type = fix;
+			return jQuery.event.handle.call( this, e );
+		}
+	});
+}
+
+jQuery.each(["bind", "one"], function( i, name ) {
+	jQuery.fn[ name ] = function( type, data, fn ) {
+		// Handle object literals
+		if ( typeof type === "object" ) {
+			for ( var key in type ) {
+				this[ name ](key, data, type[key], fn);
+			}
+			return this;
+		}
+		
+		if ( jQuery.isFunction( data ) ) {
+			fn = data;
+			data = undefined;
+		}
+
+		var handler = name === "one" ? jQuery.proxy( fn, function( event ) {
+			jQuery( this ).unbind( event, handler );
+			return fn.apply( this, arguments );
+		}) : fn;
+
+		if ( type === "unload" && name !== "one" ) {
+			this.one( type, data, fn );
+
+		} else {
+			for ( var i = 0, l = this.length; i < l; i++ ) {
+				jQuery.event.add( this[i], type, handler, data );
+			}
+		}
+
+		return this;
+	};
+});
+
+jQuery.fn.extend({
+	unbind: function( type, fn ) {
+		// Handle object literals
+		if ( typeof type === "object" && !type.preventDefault ) {
+			for ( var key in type ) {
+				this.unbind(key, type[key]);
+			}
+
+		} else {
+			for ( var i = 0, l = this.length; i < l; i++ ) {
+				jQuery.event.remove( this[i], type, fn );
+			}
+		}
+
+		return this;
+	},
+	
+	delegate: function( selector, types, data, fn ) {
+		return this.live( types, data, fn, selector );
+	},
+	
+	undelegate: function( selector, types, fn ) {
+		if ( arguments.length === 0 ) {
+				return this.unbind( "live" );
+		
+		} else {
+			return this.die( types, null, fn, selector );
+		}
+	},
+	
+	trigger: function( type, data ) {
+		return this.each(function() {
+			jQuery.event.trigger( type, data, this );
+		});
+	},
+
+	triggerHandler: function( type, data ) {
+		if ( this[0] ) {
+			var event = jQuery.Event( type );
+			event.preventDefault();
+			event.stopPropagation();
+			jQuery.event.trigger( event, data, this[0] );
+			return event.result;
+		}
+	},
+
+	toggle: function( fn ) {
+		// Save reference to arguments for access in closure
+		var args = arguments, i = 1;
+
+		// link all the functions, so any of them can unbind this click handler
+		while ( i < args.length ) {
+			jQuery.proxy( fn, args[ i++ ] );
+		}
+
+		return this.click( jQuery.proxy( fn, function( event ) {
+			// Figure out which function to execute
+			var lastToggle = ( jQuery.data( this, "lastToggle" + fn.guid ) || 0 ) % i;
+			jQuery.data( this, "lastToggle" + fn.guid, lastToggle + 1 );
+
+			// Make sure that clicks stop
+			event.preventDefault();
+
+			// and execute the function
+			return args[ lastToggle ].apply( this, arguments ) || false;
+		}));
+	},
+
+	hover: function( fnOver, fnOut ) {
+		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+	}
+});
+
+var liveMap = {
+	focus: "focusin",
+	blur: "focusout",
+	mouseenter: "mouseover",
+	mouseleave: "mouseout"
+};
+
+jQuery.each(["live", "die"], function( i, name ) {
+	jQuery.fn[ name ] = function( types, data, fn, origSelector /* Internal Use Only */ ) {
+		var type, i = 0, match, namespaces, preType,
+			selector = origSelector || this.selector,
+			context = origSelector ? this : jQuery( this.context );
+
+		if ( jQuery.isFunction( data ) ) {
+			fn = data;
+			data = undefined;
+		}
+
+		types = (types || "").split(" ");
+
+		while ( (type = types[ i++ ]) != null ) {
+			match = rnamespaces.exec( type );
+			namespaces = "";
+
+			if ( match )  {
+				namespaces = match[0];
+				type = type.replace( rnamespaces, "" );
+			}
+
+			if ( type === "hover" ) {
+				types.push( "mouseenter" + namespaces, "mouseleave" + namespaces );
+				continue;
+			}
+
+			preType = type;
+
+			if ( type === "focus" || type === "blur" ) {
+				types.push( liveMap[ type ] + namespaces );
+				type = type + namespaces;
+
+			} else {
+				type = (liveMap[ type ] || type) + namespaces;
+			}
+
+			if ( name === "live" ) {
+				// bind live handler
+				context.each(function(){
+					jQuery.event.add( this, liveConvert( type, selector ),
+						{ data: data, selector: selector, handler: fn, origType: type, origHandler: fn, preType: preType } );
+				});
+
+			} else {
+				// unbind live handler
+				context.unbind( liveConvert( type, selector ), fn );
+			}
+		}
+		
+		return this;
+	}
+});
+
+function liveHandler( event ) {
+	var stop, elems = [], selectors = [], args = arguments,
+		related, match, handleObj, elem, j, i, l, data,
+		events = jQuery.data( this, "events" );
+
+	// Make sure we avoid non-left-click bubbling in Firefox (#3861)
+	if ( event.liveFired === this || !events || !events.live || event.button && event.type === "click" ) {
+		return;
+	}
+
+	event.liveFired = this;
+
+	var live = events.live.slice(0);
+
+	for ( j = 0; j < live.length; j++ ) {
+		handleObj = live[j];
+
+		if ( handleObj.origType.replace( rnamespaces, "" ) === event.type ) {
+			selectors.push( handleObj.selector );
+
+		} else {
+			live.splice( j--, 1 );
+		}
+	}
+
+	match = jQuery( event.target ).closest( selectors, event.currentTarget );
+
+	for ( i = 0, l = match.length; i < l; i++ ) {
+		for ( j = 0; j < live.length; j++ ) {
+			handleObj = live[j];
+
+			if ( match[i].selector === handleObj.selector ) {
+				elem = match[i].elem;
+				related = null;
+
+				// Those two events require additional checking
+				if ( handleObj.preType === "mouseenter" || handleObj.preType === "mouseleave" ) {
+					related = jQuery( event.relatedTarget ).closest( handleObj.selector )[0];
+				}
+
+				if ( !related || related !== elem ) {
+					elems.push({ elem: elem, handleObj: handleObj });
+				}
+			}
+		}
+	}
+
+	for ( i = 0, l = elems.length; i < l; i++ ) {
+		match = elems[i];
+		event.currentTarget = match.elem;
+		event.data = match.handleObj.data;
+		event.handleObj = match.handleObj;
+
+		if ( match.handleObj.origHandler.apply( match.elem, args ) === false ) {
+			stop = false;
+			break;
+		}
+	}
+
+	return stop;
+}
+
+function liveConvert( type, selector ) {
+	return "live." + (type && type !== "*" ? type + "." : "") + selector.replace(/\./g, "`").replace(/ /g, "&");
+}
+
+jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
+	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+	"change select submit keydown keypress keyup error").split(" "), function( i, name ) {
+
+	// Handle event binding
+	jQuery.fn[ name ] = function( fn ) {
+		return fn ? this.bind( name, fn ) : this.trigger( name );
+	};
+
+	if ( jQuery.attrFn ) {
+		jQuery.attrFn[ name ] = true;
+	}
+});
+
+// Prevent memory leaks in IE
+// Window isn't included so as not to unbind existing unload events
+// More info:
+//  - http://isaacschlueter.com/2006/10/msie-memory-leaks/
+if ( window.attachEvent && !window.addEventListener ) {
+	window.attachEvent("onunload", function() {
+		for ( var id in jQuery.cache ) {
+			if ( jQuery.cache[ id ].handle ) {
+				// Try/Catch is to handle iframes being unloaded, see #4280
+				try {
+					jQuery.event.remove( jQuery.cache[ id ].handle.elem );
+				} catch(e) {}
+			}
+		}
+	});
+}
+/*!
+ * Sizzle CSS Selector Engine - v1.0
+ *  Copyright 2009, The Dojo Foundation
+ *  Released under the MIT, BSD, and GPL Licenses.
+ *  More information: http://sizzlejs.com/
+ */
+(function(){
+
+var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
+	done = 0,
+	toString = Object.prototype.toString,
+	hasDuplicate = false,
+	baseHasDuplicate = true;
+
+// Here we check if the JavaScript engine is using some sort of
+// optimization where it does not always call our comparision
+// function. If that is the case, discard the hasDuplicate value.
+//   Thus far that includes Google Chrome.
+[0, 0].sort(function(){
+	baseHasDuplicate = false;
+	return 0;
+});
+
+var Sizzle = function(selector, context, results, seed) {
+	results = results || [];
+	var origContext = context = context || document;
+
+	if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
+		return [];
+	}
+	
+	if ( !selector || typeof selector !== "string" ) {
+		return results;
+	}
+
+	var parts = [], m, set, checkSet, extra, prune = true, contextXML = isXML(context),
+		soFar = selector;
+	
+	// Reset the position of the chunker regexp (start from head)
+	while ( (chunker.exec(""), m = chunker.exec(soFar)) !== null ) {
+		soFar = m[3];
+		
+		parts.push( m[1] );
+		
+		if ( m[2] ) {
+			extra = m[3];
+			break;
+		}
+	}
+
+	if ( parts.length > 1 && origPOS.exec( selector ) ) {
+		if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
+			set = posProcess( parts[0] + parts[1], context );
+		} else {
+			set = Expr.relative[ parts[0] ] ?
+				[ context ] :
+				Sizzle( parts.shift(), context );
+
+			while ( parts.length ) {
+				selector = parts.shift();
+
+				if ( Expr.relative[ selector ] ) {
+					selector += parts.shift();
+				}
+				
+				set = posProcess( selector, set );
+			}
+		}
+	} else {
+		// Take a shortcut and set the context if the root selector is an ID
+		// (but not if it'll be faster if the inner selector is an ID)
+		if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
+				Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
+			var ret = Sizzle.find( parts.shift(), context, contextXML );
+			context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
+		}
+
+		if ( context ) {
+			var ret = seed ?
+				{ expr: parts.pop(), set: makeArray(seed) } :
+				Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
+			set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
+
+			if ( parts.length > 0 ) {
+				checkSet = makeArray(set);
+			} else {
+				prune = false;
+			}
+
+			while ( parts.length ) {
+				var cur = parts.pop(), pop = cur;
+
+				if ( !Expr.relative[ cur ] ) {
+					cur = "";
+				} else {
+					pop = parts.pop();
+				}
+
+				if ( pop == null ) {
+					pop = context;
+				}
+
+				Expr.relative[ cur ]( checkSet, pop, contextXML );
+			}
+		} else {
+			checkSet = parts = [];
+		}
+	}
+
+	if ( !checkSet ) {
+		checkSet = set;
+	}
+
+	if ( !checkSet ) {
+		Sizzle.error( cur || selector );
+	}
+
+	if ( toString.call(checkSet) === "[object Array]" ) {
+		if ( !prune ) {
+			results.push.apply( results, checkSet );
+		} else if ( context && context.nodeType === 1 ) {
+			for ( var i = 0; checkSet[i] != null; i++ ) {
+				if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
+					results.push( set[i] );
+				}
+			}
+		} else {
+			for ( var i = 0; checkSet[i] != null; i++ ) {
+				if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
+					results.push( set[i] );
+				}
+			}
+		}
+	} else {
+		makeArray( checkSet, results );
+	}
+
+	if ( extra ) {
+		Sizzle( extra, origContext, results, seed );
+		Sizzle.uniqueSort( results );
+	}
+
+	return results;
+};
+
+Sizzle.uniqueSort = function(results){
+	if ( sortOrder ) {
+		hasDuplicate = baseHasDuplicate;
+		results.sort(sortOrder);
+
+		if ( hasDuplicate ) {
+			for ( var i = 1; i < results.length; i++ ) {
+				if ( results[i] === results[i-1] ) {
+					results.splice(i--, 1);
+				}
+			}
+		}
+	}
+
+	return results;
+};
+
+Sizzle.matches = function(expr, set){
+	return Sizzle(expr, null, null, set);
+};
+
+Sizzle.find = function(expr, context, isXML){
+	var set, match;
+
+	if ( !expr ) {
+		return [];
+	}
+
+	for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
+		var type = Expr.order[i], match;
+		
+		if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {
+			var left = match[1];
+			match.splice(1,1);
+
+			if ( left.substr( left.length - 1 ) !== "\\" ) {
+				match[1] = (match[1] || "").replace(/\\/g, "");
+				set = Expr.find[ type ]( match, context, isXML );
+				if ( set != null ) {
+					expr = expr.replace( Expr.match[ type ], "" );
+					break;
+				}
+			}
+		}
+	}
+
+	if ( !set ) {
+		set = context.getElementsByTagName("*");
+	}
+
+	return {set: set, expr: expr};
+};
+
+Sizzle.filter = function(expr, set, inplace, not){
+	var old = expr, result = [], curLoop = set, match, anyFound,
+		isXMLFilter = set && set[0] && isXML(set[0]);
+
+	while ( expr && set.length ) {
+		for ( var type in Expr.filter ) {
+			if ( (match = Expr.leftMatch[ type ].exec( expr )) != null && match[2] ) {
+				var filter = Expr.filter[ type ], found, item, left = match[1];
+				anyFound = false;
+
+				match.splice(1,1);
+
+				if ( left.substr( left.length - 1 ) === "\\" ) {
+					continue;
+				}
+
+				if ( curLoop === result ) {
+					result = [];
+				}
+
+				if ( Expr.preFilter[ type ] ) {
+					match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
+
+					if ( !match ) {
+						anyFound = found = true;
+					} else if ( match === true ) {
+						continue;
+					}
+				}
+
+				if ( match ) {
+					for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
+						if ( item ) {
+							found = filter( item, match, i, curLoop );
+							var pass = not ^ !!found;
+
+							if ( inplace && found != null ) {
+								if ( pass ) {
+									anyFound = true;
+								} else {
+									curLoop[i] = false;
+								}
+							} else if ( pass ) {
+								result.push( item );
+								anyFound = true;
+							}
+						}
+					}
+				}
+
+				if ( found !== undefined ) {
+					if ( !inplace ) {
+						curLoop = result;
+					}
+
+					expr = expr.replace( Expr.match[ type ], "" );
+
+					if ( !anyFound ) {
+						return [];
+					}
+
+					break;
+				}
+			}
+		}
+
+		// Improper expression
+		if ( expr === old ) {
+			if ( anyFound == null ) {
+				Sizzle.error( expr );
+			} else {
+				break;
+			}
+		}
+
+		old = expr;
+	}
+
+	return curLoop;
+};
+
+Sizzle.error = function( msg ) {
+	throw "Syntax error, unrecognized expression: " + msg;
+};
+
+var Expr = Sizzle.selectors = {
+	order: [ "ID", "NAME", "TAG" ],
+	match: {
+		ID: /#((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
+		CLASS: /\.((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
+		NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF-]|\\.)+)['"]*\]/,
+		ATTR: /\[\s*((?:[\w\u00c0-\uFFFF-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
+		TAG: /^((?:[\w\u00c0-\uFFFF\*-]|\\.)+)/,
+		CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
+		POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
+		PSEUDO: /:((?:[\w\u00c0-\uFFFF-]|\\.)+)(?:\((['"]?)((?:\([^\)]+\)|[^\(\)]*)+)\2\))?/
+	},
+	leftMatch: {},
+	attrMap: {
+		"class": "className",
+		"for": "htmlFor"
+	},
+	attrHandle: {
+		href: function(elem){
+			return elem.getAttribute("href");
+		}
+	},
+	relative: {
+		"+": function(checkSet, part){
+			var isPartStr = typeof part === "string",
+				isTag = isPartStr && !/\W/.test(part),
+				isPartStrNotTag = isPartStr && !isTag;
+
+			if ( isTag ) {
+				part = part.toLowerCase();
+			}
+
+			for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
+				if ( (elem = checkSet[i]) ) {
+					while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
+
+					checkSet[i] = isPartStrNotTag || elem && elem.nodeName.toLowerCase() === part ?
+						elem || false :
+						elem === part;
+				}
+			}
+
+			if ( isPartStrNotTag ) {
+				Sizzle.filter( part, checkSet, true );
+			}
+		},
+		">": function(checkSet, part){
+			var isPartStr = typeof part === "string";
+
+			if ( isPartStr && !/\W/.test(part) ) {
+				part = part.toLowerCase();
+
+				for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+					var elem = checkSet[i];
+					if ( elem ) {
+						var parent = elem.parentNode;
+						checkSet[i] = parent.nodeName.toLowerCase() === part ? parent : false;
+					}
+				}
+			} else {
+				for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+					var elem = checkSet[i];
+					if ( elem ) {
+						checkSet[i] = isPartStr ?
+							elem.parentNode :
+							elem.parentNode === part;
+					}
+				}
+
+				if ( isPartStr ) {
+					Sizzle.filter( part, checkSet, true );
+				}
+			}
+		},
+		"": function(checkSet, part, isXML){
+			var doneName = done++, checkFn = dirCheck;
+
+			if ( typeof part === "string" && !/\W/.test(part) ) {
+				var nodeCheck = part = part.toLowerCase();
+				checkFn = dirNodeCheck;
+			}
+
+			checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
+		},
+		"~": function(checkSet, part, isXML){
+			var doneName = done++, checkFn = dirCheck;
+
+			if ( typeof part === "string" && !/\W/.test(part) ) {
+				var nodeCheck = part = part.toLowerCase();
+				checkFn = dirNodeCheck;
+			}
+
+			checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
+		}
+	},
+	find: {
+		ID: function(match, context, isXML){
+			if ( typeof context.getElementById !== "undefined" && !isXML ) {
+				var m = context.getElementById(match[1]);
+				return m ? [m] : [];
+			}
+		},
+		NAME: function(match, context){
+			if ( typeof context.getElementsByName !== "undefined" ) {
+				var ret = [], results = context.getElementsByName(match[1]);
+
+				for ( var i = 0, l = results.length; i < l; i++ ) {
+					if ( results[i].getAttribute("name") === match[1] ) {
+						ret.push( results[i] );
+					}
+				}
+
+				return ret.length === 0 ? null : ret;
+			}
+		},
+		TAG: function(match, context){
+			return context.getElementsByTagName(match[1]);
+		}
+	},
+	preFilter: {
+		CLASS: function(match, curLoop, inplace, result, not, isXML){
+			match = " " + match[1].replace(/\\/g, "") + " ";
+
+			if ( isXML ) {
+				return match;
+			}
+
+			for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
+				if ( elem ) {
+					if ( not ^ (elem.className && (" " + elem.className + " ").replace(/[\t\n]/g, " ").indexOf(match) >= 0) ) {
+						if ( !inplace ) {
+							result.push( elem );
+						}
+					} else if ( inplace ) {
+						curLoop[i] = false;
+					}
+				}
+			}
+
+			return false;
+		},
+		ID: function(match){
+			return match[1].replace(/\\/g, "");
+		},
+		TAG: function(match, curLoop){
+			return match[1].toLowerCase();
+		},
+		CHILD: function(match){
+			if ( match[1] === "nth" ) {
+				// parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
+				var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
+					match[2] === "even" && "2n" || match[2] === "odd" && "2n+1" ||
+					!/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
+
+				// calculate the numbers (first)n+(last) including if they are negative
+				match[2] = (test[1] + (test[2] || 1)) - 0;
+				match[3] = test[3] - 0;
+			}
+
+			// TODO: Move to normal caching system
+			match[0] = done++;
+
+			return match;
+		},
+		ATTR: function(match, curLoop, inplace, result, not, isXML){
+			var name = match[1].replace(/\\/g, "");
+			
+			if ( !isXML && Expr.attrMap[name] ) {
+				match[1] = Expr.attrMap[name];
+			}
+
+			if ( match[2] === "~=" ) {
+				match[4] = " " + match[4] + " ";
+			}
+
+			return match;
+		},
+		PSEUDO: function(match, curLoop, inplace, result, not){
+			if ( match[1] === "not" ) {
+				// If we're dealing with a complex expression, or a simple one
+				if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ) {
+					match[3] = Sizzle(match[3], null, null, curLoop);
+				} else {
+					var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
+					if ( !inplace ) {
+						result.push.apply( result, ret );
+					}
+					return false;
+				}
+			} else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
+				return true;
+			}
+			
+			return match;
+		},
+		POS: function(match){
+			match.unshift( true );
+			return match;
+		}
+	},
+	filters: {
+		enabled: function(elem){
+			return elem.disabled === false && elem.type !== "hidden";
+		},
+		disabled: function(elem){
+			return elem.disabled === true;
+		},
+		checked: function(elem){
+			return elem.checked === true;
+		},
+		selected: function(elem){
+			// Accessing this property makes selected-by-default
+			// options in Safari work properly
+			elem.parentNode.selectedIndex;
+			return elem.selected === true;
+		},
+		parent: function(elem){
+			return !!elem.firstChild;
+		},
+		empty: function(elem){
+			return !elem.firstChild;
+		},
+		has: function(elem, i, match){
+			return !!Sizzle( match[3], elem ).length;
+		},
+		header: function(elem){
+			return /h\d/i.test( elem.nodeName );
+		},
+		text: function(elem){
+			return "text" === elem.type;
+		},
+		radio: function(elem){
+			return "radio" === elem.type;
+		},
+		checkbox: function(elem){
+			return "checkbox" === elem.type;
+		},
+		file: function(elem){
+			return "file" === elem.type;
+		},
+		password: function(elem){
+			return "password" === elem.type;
+		},
+		submit: function(elem){
+			return "submit" === elem.type;
+		},
+		image: function(elem){
+			return "image" === elem.type;
+		},
+		reset: function(elem){
+			return "reset" === elem.type;
+		},
+		button: function(elem){
+			return "button" === elem.type || elem.nodeName.toLowerCase() === "button";
+		},
+		input: function(elem){
+			return /input|select|textarea|button/i.test(elem.nodeName);
+		}
+	},
+	setFilters: {
+		first: function(elem, i){
+			return i === 0;
+		},
+		last: function(elem, i, match, array){
+			return i === array.length - 1;
+		},
+		even: function(elem, i){
+			return i % 2 === 0;
+		},
+		odd: function(elem, i){
+			return i % 2 === 1;
+		},
+		lt: function(elem, i, match){
+			return i < match[3] - 0;
+		},
+		gt: function(elem, i, match){
+			return i > match[3] - 0;
+		},
+		nth: function(elem, i, match){
+			return match[3] - 0 === i;
+		},
+		eq: function(elem, i, match){
+			return match[3] - 0 === i;
+		}
+	},
+	filter: {
+		PSEUDO: function(elem, match, i, array){
+			var name = match[1], filter = Expr.filters[ name ];
+
+			if ( filter ) {
+				return filter( elem, i, match, array );
+			} else if ( name === "contains" ) {
+				return (elem.textContent || elem.innerText || getText([ elem ]) || "").indexOf(match[3]) >= 0;
+			} else if ( name === "not" ) {
+				var not = match[3];
+
+				for ( var i = 0, l = not.length; i < l; i++ ) {
+					if ( not[i] === elem ) {
+						return false;
+					}
+				}
+
+				return true;
+			} else {
+				Sizzle.error( "Syntax error, unrecognized expression: " + name );
+			}
+		},
+		CHILD: function(elem, match){
+			var type = match[1], node = elem;
+			switch (type) {
+				case 'only':
+				case 'first':
+					while ( (node = node.previousSibling) )	 {
+						if ( node.nodeType === 1 ) { 
+							return false; 
+						}
+					}
+					if ( type === "first" ) { 
+						return true; 
+					}
+					node = elem;
+				case 'last':
+					while ( (node = node.nextSibling) )	 {
+						if ( node.nodeType === 1 ) { 
+							return false; 
+						}
+					}
+					return true;
+				case 'nth':
+					var first = match[2], last = match[3];
+
+					if ( first === 1 && last === 0 ) {
+						return true;
+					}
+					
+					var doneName = match[0],
+						parent = elem.parentNode;
+	
+					if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
+						var count = 0;
+						for ( node = parent.firstChild; node; node = node.nextSibling ) {
+							if ( node.nodeType === 1 ) {
+								node.nodeIndex = ++count;
+							}
+						} 
+						parent.sizcache = doneName;
+					}
+					
+					var diff = elem.nodeIndex - last;
+					if ( first === 0 ) {
+						return diff === 0;
+					} else {
+						return ( diff % first === 0 && diff / first >= 0 );
+					}
+			}
+		},
+		ID: function(elem, match){
+			return elem.nodeType === 1 && elem.getAttribute("id") === match;
+		},
+		TAG: function(elem, match){
+			return (match === "*" && elem.nodeType === 1) || elem.nodeName.toLowerCase() === match;
+		},
+		CLASS: function(elem, match){
+			return (" " + (elem.className || elem.getAttribute("class")) + " ")
+				.indexOf( match ) > -1;
+		},
+		ATTR: function(elem, match){
+			var name = match[1],
+				result = Expr.attrHandle[ name ] ?
+					Expr.attrHandle[ name ]( elem ) :
+					elem[ name ] != null ?
+						elem[ name ] :
+						elem.getAttribute( name ),
+				value = result + "",
+				type = match[2],
+				check = match[4];
+
+			return result == null ?
+				type === "!=" :
+				type === "=" ?
+				value === check :
+				type === "*=" ?
+				value.indexOf(check) >= 0 :
+				type === "~=" ?
+				(" " + value + " ").indexOf(check) >= 0 :
+				!check ?
+				value && result !== false :
+				type === "!=" ?
+				value !== check :
+				type === "^=" ?
+				value.indexOf(check) === 0 :
+				type === "$=" ?
+				value.substr(value.length - check.length) === check :
+				type === "|=" ?
+				value === check || value.substr(0, check.length + 1) === check + "-" :
+				false;
+		},
+		POS: function(elem, match, i, array){
+			var name = match[2], filter = Expr.setFilters[ name ];
+
+			if ( filter ) {
+				return filter( elem, i, match, array );
+			}
+		}
+	}
+};
+
+var origPOS = Expr.match.POS;
+
+for ( var type in Expr.match ) {
+	Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
+	Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source.replace(/\\(\d+)/g, function(all, num){
+		return "\\" + (num - 0 + 1);
+	}));
+}
+
+var makeArray = function(array, results) {
+	array = Array.prototype.slice.call( array, 0 );
+
+	if ( results ) {
+		results.push.apply( results, array );
+		return results;
+	}
+	
+	return array;
+};
+
+// Perform a simple check to determine if the browser is capable of
+// converting a NodeList to an array using builtin methods.
+// Also verifies that the returned array holds DOM nodes
+// (which is not the case in the Blackberry browser)
+try {
+	Array.prototype.slice.call( document.documentElement.childNodes, 0 )[0].nodeType;
+
+// Provide a fallback method if it does not work
+} catch(e){
+	makeArray = function(array, results) {
+		var ret = results || [];
+
+		if ( toString.call(array) === "[object Array]" ) {
+			Array.prototype.push.apply( ret, array );
+		} else {
+			if ( typeof array.length === "number" ) {
+				for ( var i = 0, l = array.length; i < l; i++ ) {
+					ret.push( array[i] );
+				}
+			} else {
+				for ( var i = 0; array[i]; i++ ) {
+					ret.push( array[i] );
+				}
+			}
+		}
+
+		return ret;
+	};
+}
+
+var sortOrder;
+
+if ( document.documentElement.compareDocumentPosition ) {
+	sortOrder = function( a, b ) {
+		if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
+			if ( a == b ) {
+				hasDuplicate = true;
+			}
+			return a.compareDocumentPosition ? -1 : 1;
+		}
+
+		var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
+		if ( ret === 0 ) {
+			hasDuplicate = true;
+		}
+		return ret;
+	};
+} else if ( "sourceIndex" in document.documentElement ) {
+	sortOrder = function( a, b ) {
+		if ( !a.sourceIndex || !b.sourceIndex ) {
+			if ( a == b ) {
+				hasDuplicate = true;
+			}
+			return a.sourceIndex ? -1 : 1;
+		}
+
+		var ret = a.sourceIndex - b.sourceIndex;
+		if ( ret === 0 ) {
+			hasDuplicate = true;
+		}
+		return ret;
+	};
+} else if ( document.createRange ) {
+	sortOrder = function( a, b ) {
+		if ( !a.ownerDocument || !b.ownerDocument ) {
+			if ( a == b ) {
+				hasDuplicate = true;
+			}
+			return a.ownerDocument ? -1 : 1;
+		}
+
+		var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
+		aRange.setStart(a, 0);
+		aRange.setEnd(a, 0);
+		bRange.setStart(b, 0);
+		bRange.setEnd(b, 0);
+		var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
+		if ( ret === 0 ) {
+			hasDuplicate = true;
+		}
+		return ret;
+	};
+}
+
+// Utility function for retreiving the text value of an array of DOM nodes
+function getText( elems ) {
+	var ret = "", elem;
+
+	for ( var i = 0; elems[i]; i++ ) {
+		elem = elems[i];
+
+		// Get the text from text nodes and CDATA nodes
+		if ( elem.nodeType === 3 || elem.nodeType === 4 ) {
+			ret += elem.nodeValue;
+
+		// Traverse everything else, except comment nodes
+		} else if ( elem.nodeType !== 8 ) {
+			ret += getText( elem.childNodes );
+		}
+	}
+
+	return ret;
+}
+
+// Check to see if the browser returns elements by name when
+// querying by getElementById (and provide a workaround)
+(function(){
+	// We're going to inject a fake input element with a specified name
+	var form = document.createElement("div"),
+		id = "script" + (new Date).getTime();
+	form.innerHTML = "<a name='" + id + "'/>";
+
+	// Inject it into the root element, check its status, and remove it quickly
+	var root = document.documentElement;
+	root.insertBefore( form, root.firstChild );
+
+	// The workaround has to do additional checks after a getElementById
+	// Which slows things down for other browsers (hence the branching)
+	if ( document.getElementById( id ) ) {
+		Expr.find.ID = function(match, context, isXML){
+			if ( typeof context.getElementById !== "undefined" && !isXML ) {
+				var m = context.getElementById(match[1]);
+				return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
+			}
+		};
+
+		Expr.filter.ID = function(elem, match){
+			var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
+			return elem.nodeType === 1 && node && node.nodeValue === match;
+		};
+	}
+
+	root.removeChild( form );
+	root = form = null; // release memory in IE
+})();
+
+(function(){
+	// Check to see if the browser returns only elements
+	// when doing getElementsByTagName("*")
+
+	// Create a fake element
+	var div = document.createElement("div");
+	div.appendChild( document.createComment("") );
+
+	// Make sure no comments are found
+	if ( div.getElementsByTagName("*").length > 0 ) {
+		Expr.find.TAG = function(match, context){
+			var results = context.getElementsByTagName(match[1]);
+
+			// Filter out possible comments
+			if ( match[1] === "*" ) {
+				var tmp = [];
+
+				for ( var i = 0; results[i]; i++ ) {
+					if ( results[i].nodeType === 1 ) {
+						tmp.push( results[i] );
+					}
+				}
+
+				results = tmp;
+			}
+
+			return results;
+		};
+	}
+
+	// Check to see if an attribute returns normalized href attributes
+	div.innerHTML = "<a href='#'></a>";
+	if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
+			div.firstChild.getAttribute("href") !== "#" ) {
+		Expr.attrHandle.href = function(elem){
+			return elem.getAttribute("href", 2);
+		};
+	}
+
+	div = null; // release memory in IE
+})();
+
+if ( document.querySelectorAll ) {
+	(function(){
+		var oldSizzle = Sizzle, div = document.createElement("div");
+		div.innerHTML = "<p class='TEST'></p>";
+
+		// Safari can't handle uppercase or unicode characters when
+		// in quirks mode.
+		if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
+			return;
+		}
+	
+		Sizzle = function(query, context, extra, seed){
+			context = context || document;
+
+			// Only use querySelectorAll on non-XML documents
+			// (ID selectors don't work in non-HTML documents)
+			if ( !seed && context.nodeType === 9 && !isXML(context) ) {
+				try {
+					return makeArray( context.querySelectorAll(query), extra );
+				} catch(e){}
+			}
+		
+			return oldSizzle(query, context, extra, seed);
+		};
+
+		for ( var prop in oldSizzle ) {
+			Sizzle[ prop ] = oldSizzle[ prop ];
+		}
+
+		div = null; // release memory in IE
+	})();
+}
+
+(function(){
+	var div = document.createElement("div");
+
+	div.innerHTML = "<div class='test e'></div><div class='test'></div>";
+
+	// Opera can't find a second classname (in 9.6)
+	// Also, make sure that getElementsByClassName actually exists
+	if ( !div.getElementsByClassName || div.getElementsByClassName("e").length === 0 ) {
+		return;
+	}
+
+	// Safari caches class attributes, doesn't catch changes (in 3.2)
+	div.lastChild.className = "e";
+
+	if ( div.getElementsByClassName("e").length === 1 ) {
+		return;
+	}
+	
+	Expr.order.splice(1, 0, "CLASS");
+	Expr.find.CLASS = function(match, context, isXML) {
+		if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
+			return context.getElementsByClassName(match[1]);
+		}
+	};
+
+	div = null; // release memory in IE
+})();
+
+function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
+	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+		var elem = checkSet[i];
+		if ( elem ) {
+			elem = elem[dir];
+			var match = false;
+
+			while ( elem ) {
+				if ( elem.sizcache === doneName ) {
+					match = checkSet[elem.sizset];
+					break;
+				}
+
+				if ( elem.nodeType === 1 && !isXML ){
+					elem.sizcache = doneName;
+					elem.sizset = i;
+				}
+
+				if ( elem.nodeName.toLowerCase() === cur ) {
+					match = elem;
+					break;
+				}
+
+				elem = elem[dir];
+			}
+
+			checkSet[i] = match;
+		}
+	}
+}
+
+function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
+	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+		var elem = checkSet[i];
+		if ( elem ) {
+			elem = elem[dir];
+			var match = false;
+
+			while ( elem ) {
+				if ( elem.sizcache === doneName ) {
+					match = checkSet[elem.sizset];
+					break;
+				}
+
+				if ( elem.nodeType === 1 ) {
+					if ( !isXML ) {
+						elem.sizcache = doneName;
+						elem.sizset = i;
+					}
+					if ( typeof cur !== "string" ) {
+						if ( elem === cur ) {
+							match = true;
+							break;
+						}
+
+					} else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
+						match = elem;
+						break;
+					}
+				}
+
+				elem = elem[dir];
+			}
+
+			checkSet[i] = match;
+		}
+	}
+}
+
+var contains = document.compareDocumentPosition ? function(a, b){
+	return !!(a.compareDocumentPosition(b) & 16);
+} : function(a, b){
+	return a !== b && (a.contains ? a.contains(b) : true);
+};
+
+var isXML = function(elem){
+	// documentElement is verified for cases where it doesn't yet exist
+	// (such as loading iframes in IE - #4833) 
+	var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;
+	return documentElement ? documentElement.nodeName !== "HTML" : false;
+};
+
+var posProcess = function(selector, context){
+	var tmpSet = [], later = "", match,
+		root = context.nodeType ? [context] : context;
+
+	// Position selectors must be done after the filter
+	// And so must :not(positional) so we move all PSEUDOs to the end
+	while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
+		later += match[0];
+		selector = selector.replace( Expr.match.PSEUDO, "" );
+	}
+
+	selector = Expr.relative[selector] ? selector + "*" : selector;
+
+	for ( var i = 0, l = root.length; i < l; i++ ) {
+		Sizzle( selector, root[i], tmpSet );
+	}
+
+	return Sizzle.filter( later, tmpSet );
+};
+
+// EXPOSE
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+jQuery.expr[":"] = jQuery.expr.filters;
+jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = getText;
+jQuery.isXMLDoc = isXML;
+jQuery.contains = contains;
+
+return;
+
+window.Sizzle = Sizzle;
+
+})();
+var runtil = /Until$/,
+	rparentsprev = /^(?:parents|prevUntil|prevAll)/,
+	// Note: This RegExp should be improved, or likely pulled from Sizzle
+	rmultiselector = /,/,
+	slice = Array.prototype.slice;
+
+// Implement the identical functionality for filter and not
+var winnow = function( elements, qualifier, keep ) {
+	if ( jQuery.isFunction( qualifier ) ) {
+		return jQuery.grep(elements, function( elem, i ) {
+			return !!qualifier.call( elem, i, elem ) === keep;
+		});
+
+	} else if ( qualifier.nodeType ) {
+		return jQuery.grep(elements, function( elem, i ) {
+			return (elem === qualifier) === keep;
+		});
+
+	} else if ( typeof qualifier === "string" ) {
+		var filtered = jQuery.grep(elements, function( elem ) {
+			return elem.nodeType === 1;
+		});
+
+		if ( isSimple.test( qualifier ) ) {
+			return jQuery.filter(qualifier, filtered, !keep);
+		} else {
+			qualifier = jQuery.filter( qualifier, filtered );
+		}
+	}
+
+	return jQuery.grep(elements, function( elem, i ) {
+		return (jQuery.inArray( elem, qualifier ) >= 0) === keep;
+	});
+};
+
+jQuery.fn.extend({
+	find: function( selector ) {
+		var ret = this.pushStack( "", "find", selector ), length = 0;
+
+		for ( var i = 0, l = this.length; i < l; i++ ) {
+			length = ret.length;
+			jQuery.find( selector, this[i], ret );
+
+			if ( i > 0 ) {
+				// Make sure that the results are unique
+				for ( var n = length; n < ret.length; n++ ) {
+					for ( var r = 0; r < length; r++ ) {
+						if ( ret[r] === ret[n] ) {
+							ret.splice(n--, 1);
+							break;
+						}
+					}
+				}
+			}
+		}
+
+		return ret;
+	},
+
+	has: function( target ) {
+		var targets = jQuery( target );
+		return this.filter(function() {
+			for ( var i = 0, l = targets.length; i < l; i++ ) {
+				if ( jQuery.contains( this, targets[i] ) ) {
+					return true;
+				}
+			}
+		});
+	},
+
+	not: function( selector ) {
+		return this.pushStack( winnow(this, selector, false), "not", selector);
+	},
+
+	filter: function( selector ) {
+		return this.pushStack( winnow(this, selector, true), "filter", selector );
+	},
+	
+	is: function( selector ) {
+		return !!selector && jQuery.filter( selector, this ).length > 0;
+	},
+
+	closest: function( selectors, context ) {
+		if ( jQuery.isArray( selectors ) ) {
+			var ret = [], cur = this[0], match, matches = {}, selector;
+
+			if ( cur && selectors.length ) {
+				for ( var i = 0, l = selectors.length; i < l; i++ ) {
+					selector = selectors[i];
+
+					if ( !matches[selector] ) {
+						matches[selector] = jQuery.expr.match.POS.test( selector ) ? 
+							jQuery( selector, context || this.context ) :
+							selector;
+					}
+				}
+
+				while ( cur && cur.ownerDocument && cur !== context ) {
+					for ( selector in matches ) {
+						match = matches[selector];
+
+						if ( match.jquery ? match.index(cur) > -1 : jQuery(cur).is(match) ) {
+							ret.push({ selector: selector, elem: cur });
+							delete matches[selector];
+						}
+					}
+					cur = cur.parentNode;
+				}
+			}
+
+			return ret;
+		}
+
+		var pos = jQuery.expr.match.POS.test( selectors ) ? 
+			jQuery( selectors, context || this.context ) : null;
+
+		return this.map(function( i, cur ) {
+			while ( cur && cur.ownerDocument && cur !== context ) {
+				if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selectors) ) {
+					return cur;
+				}
+				cur = cur.parentNode;
+			}
+			return null;
+		});
+	},
+	
+	// Determine the position of an element within
+	// the matched set of elements
+	index: function( elem ) {
+		if ( !elem || typeof elem === "string" ) {
+			return jQuery.inArray( this[0],
+				// If it receives a string, the selector is used
+				// If it receives nothing, the siblings are used
+				elem ? jQuery( elem ) : this.parent().children() );
+		}
+		// Locate the position of the desired element
+		return jQuery.inArray(
+			// If it receives a jQuery object, the first element is used
+			elem.jquery ? elem[0] : elem, this );
+	},
+
+	add: function( selector, context ) {
+		var set = typeof selector === "string" ?
+				jQuery( selector, context || this.context ) :
+				jQuery.makeArray( selector ),
+			all = jQuery.merge( this.get(), set );
+
+		return this.pushStack( isDisconnected( set[0] ) || isDisconnected( all[0] ) ?
+			all :
+			jQuery.unique( all ) );
+	},
+
+	andSelf: function() {
+		return this.add( this.prevObject );
+	}
+});
+
+// A painfully simple check to see if an element is disconnected
+// from a document (should be improved, where feasible).
+function isDisconnected( node ) {
+	return !node || !node.parentNode || node.parentNode.nodeType === 11;
+}
+
+jQuery.each({
+	parent: function( elem ) {
+		var parent = elem.parentNode;
+		return parent && parent.nodeType !== 11 ? parent : null;
+	},
+	parents: function( elem ) {
+		return jQuery.dir( elem, "parentNode" );
+	},
+	parentsUntil: function( elem, i, until ) {
+		return jQuery.dir( elem, "parentNode", until );
+	},
+	next: function( elem ) {
+		return jQuery.nth( elem, 2, "nextSibling" );
+	},
+	prev: function( elem ) {
+		return jQuery.nth( elem, 2, "previousSibling" );
+	},
+	nextAll: function( elem ) {
+		return jQuery.dir( elem, "nextSibling" );
+	},
+	prevAll: function( elem ) {
+		return jQuery.dir( elem, "previousSibling" );
+	},
+	nextUntil: function( elem, i, until ) {
+		return jQuery.dir( elem, "nextSibling", until );
+	},
+	prevUntil: function( elem, i, until ) {
+		return jQuery.dir( elem, "previousSibling", until );
+	},
+	siblings: function( elem ) {
+		return jQuery.sibling( elem.parentNode.firstChild, elem );
+	},
+	children: function( elem ) {
+		return jQuery.sibling( elem.firstChild );
+	},
+	contents: function( elem ) {
+		return jQuery.nodeName( elem, "iframe" ) ?
+			elem.contentDocument || elem.contentWindow.document :
+			jQuery.makeArray( elem.childNodes );
+	}
+}, function( name, fn ) {
+	jQuery.fn[ name ] = function( until, selector ) {
+		var ret = jQuery.map( this, fn, until );
+		
+		if ( !runtil.test( name ) ) {
+			selector = until;
+		}
+
+		if ( selector && typeof selector === "string" ) {
+			ret = jQuery.filter( selector, ret );
+		}
+
+		ret = this.length > 1 ? jQuery.unique( ret ) : ret;
+
+		if ( (this.length > 1 || rmultiselector.test( selector )) && rparentsprev.test( name ) ) {
+			ret = ret.reverse();
+		}
+
+		return this.pushStack( ret, name, slice.call(arguments).join(",") );
+	};
+});
+
+jQuery.extend({
+	filter: function( expr, elems, not ) {
+		if ( not ) {
+			expr = ":not(" + expr + ")";
+		}
+
+		return jQuery.find.matches(expr, elems);
+	},
+	
+	dir: function( elem, dir, until ) {
+		var matched = [], cur = elem[dir];
+		while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
+			if ( cur.nodeType === 1 ) {
+				matched.push( cur );
+			}
+			cur = cur[dir];
+		}
+		return matched;
+	},
+
+	nth: function( cur, result, dir, elem ) {
+		result = result || 1;
+		var num = 0;
+
+		for ( ; cur; cur = cur[dir] ) {
+			if ( cur.nodeType === 1 && ++num === result ) {
+				break;
+			}
+		}
+
+		return cur;
+	},
+
+	sibling: function( n, elem ) {
+		var r = [];
+
+		for ( ; n; n = n.nextSibling ) {
+			if ( n.nodeType === 1 && n !== elem ) {
+				r.push( n );
+			}
+		}
+
+		return r;
+	}
+});
+var rinlinejQuery = / jQuery\d+="(?:\d+|null)"/g,
+	rleadingWhitespace = /^\s+/,
+	rxhtmlTag = /(<([\w:]+)[^>]*?)\/>/g,
+	rselfClosing = /^(?:area|br|col|embed|hr|img|input|link|meta|param)$/i,
+	rtagName = /<([\w:]+)/,
+	rtbody = /<tbody/i,
+	rhtml = /<|&#?\w+;/,
+	rnocache = /<script|<object|<embed|<option|<style/i,
+	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,  // checked="checked" or checked (html5)
+	fcloseTag = function( all, front, tag ) {
+		return rselfClosing.test( tag ) ?
+			all :
+			front + "></" + tag + ">";
+	},
+	wrapMap = {
+		option: [ 1, "<select multiple='multiple'>", "</select>" ],
+		legend: [ 1, "<fieldset>", "</fieldset>" ],
+		thead: [ 1, "<table>", "</table>" ],
+		tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+		td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+		col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
+		area: [ 1, "<map>", "</map>" ],
+		_default: [ 0, "", "" ]
+	};
+
+wrapMap.optgroup = wrapMap.option;
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+// IE can't serialize <link> and <script> tags normally
+if ( !jQuery.support.htmlSerialize ) {
+	wrapMap._default = [ 1, "div<div>", "</div>" ];
+}
+
+jQuery.fn.extend({
+	text: function( text ) {
+		if ( jQuery.isFunction(text) ) {
+			return this.each(function(i) {
+				var self = jQuery(this);
+				self.text( text.call(this, i, self.text()) );
+			});
+		}
+
+		if ( typeof text !== "object" && text !== undefined ) {
+			return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );
+		}
+
+		return jQuery.text( this );
+	},
+
+	wrapAll: function( html ) {
+		if ( jQuery.isFunction( html ) ) {
+			return this.each(function(i) {
+				jQuery(this).wrapAll( html.call(this, i) );
+			});
+		}
+
+		if ( this[0] ) {
+			// The elements to wrap the target around
+			var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone(true);
+
+			if ( this[0].parentNode ) {
+				wrap.insertBefore( this[0] );
+			}
+
+			wrap.map(function() {
+				var elem = this;
+
+				while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
+					elem = elem.firstChild;
+				}
+
+				return elem;
+			}).append(this);
+		}
+
+		return this;
+	},
+
+	wrapInner: function( html ) {
+		if ( jQuery.isFunction( html ) ) {
+			return this.each(function(i) {
+				jQuery(this).wrapInner( html.call(this, i) );
+			});
+		}
+
+		return this.each(function() {
+			var self = jQuery( this ), contents = self.contents();
+
+			if ( contents.length ) {
+				contents.wrapAll( html );
+
+			} else {
+				self.append( html );
+			}
+		});
+	},
+
+	wrap: function( html ) {
+		return this.each(function() {
+			jQuery( this ).wrapAll( html );
+		});
+	},
+
+	unwrap: function() {
+		return this.parent().each(function() {
+			if ( !jQuery.nodeName( this, "body" ) ) {
+				jQuery( this ).replaceWith( this.childNodes );
+			}
+		}).end();
+	},
+
+	append: function() {
+		return this.domManip(arguments, true, function( elem ) {
+			if ( this.nodeType === 1 ) {
+				this.appendChild( elem );
+			}
+		});
+	},
+
+	prepend: function() {
+		return this.domManip(arguments, true, function( elem ) {
+			if ( this.nodeType === 1 ) {
+				this.insertBefore( elem, this.firstChild );
+			}
+		});
+	},
+
+	before: function() {
+		if ( this[0] && this[0].parentNode ) {
+			return this.domManip(arguments, false, function( elem ) {
+				this.parentNode.insertBefore( elem, this );
+			});
+		} else if ( arguments.length ) {
+			var set = jQuery(arguments[0]);
+			set.push.apply( set, this.toArray() );
+			return this.pushStack( set, "before", arguments );
+		}
+	},
+
+	after: function() {
+		if ( this[0] && this[0].parentNode ) {
+			return this.domManip(arguments, false, function( elem ) {
+				this.parentNode.insertBefore( elem, this.nextSibling );
+			});
+		} else if ( arguments.length ) {
+			var set = this.pushStack( this, "after", arguments );
+			set.push.apply( set, jQuery(arguments[0]).toArray() );
+			return set;
+		}
+	},
+	
+	// keepData is for internal use only--do not document
+	remove: function( selector, keepData ) {
+		for ( var i = 0, elem; (elem = this[i]) != null; i++ ) {
+			if ( !selector || jQuery.filter( selector, [ elem ] ).length ) {
+				if ( !keepData && elem.nodeType === 1 ) {
+					jQuery.cleanData( elem.getElementsByTagName("*") );
+					jQuery.cleanData( [ elem ] );
+				}
+
+				if ( elem.parentNode ) {
+					 elem.parentNode.removeChild( elem );
+				}
+			}
+		}
+		
+		return this;
+	},
+
+	empty: function() {
+		for ( var i = 0, elem; (elem = this[i]) != null; i++ ) {
+			// Remove element nodes and prevent memory leaks
+			if ( elem.nodeType === 1 ) {
+				jQuery.cleanData( elem.getElementsByTagName("*") );
+			}
+
+			// Remove any remaining nodes
+			while ( elem.firstChild ) {
+				elem.removeChild( elem.firstChild );
+			}
+		}
+		
+		return this;
+	},
+
+	clone: function( events ) {
+		// Do the clone
+		var ret = this.map(function() {
+			if ( !jQuery.support.noCloneEvent && !jQuery.isXMLDoc(this) ) {
+				// IE copies events bound via attachEvent when
+				// using cloneNode. Calling detachEvent on the
+				// clone will also remove the events from the orignal
+				// In order to get around this, we use innerHTML.
+				// Unfortunately, this means some modifications to
+				// attributes in IE that are actually only stored
+				// as properties will not be copied (such as the
+				// the name attribute on an input).
+				var html = this.outerHTML, ownerDocument = this.ownerDocument;
+				if ( !html ) {
+					var div = ownerDocument.createElement("div");
+					div.appendChild( this.cloneNode(true) );
+					html = div.innerHTML;
+				}
+
+				return jQuery.clean([html.replace(rinlinejQuery, "")
+					// Handle the case in IE 8 where action=/test/> self-closes a tag
+					.replace(/=([^="'>\s]+\/)>/g, '="$1">')
+					.replace(rleadingWhitespace, "")], ownerDocument)[0];
+			} else {
+				return this.cloneNode(true);
+			}
+		});
+
+		// Copy the events from the original to the clone
+		if ( events === true ) {
+			cloneCopyEvent( this, ret );
+			cloneCopyEvent( this.find("*"), ret.find("*") );
+		}
+
+		// Return the cloned set
+		return ret;
+	},
+
+	html: function( value ) {
+		if ( value === undefined ) {
+			return this[0] && this[0].nodeType === 1 ?
+				this[0].innerHTML.replace(rinlinejQuery, "") :
+				null;
+
+		// See if we can take a shortcut and just use innerHTML
+		} else if ( typeof value === "string" && !rnocache.test( value ) &&
+			(jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value )) &&
+			!wrapMap[ (rtagName.exec( value ) || ["", ""])[1].toLowerCase() ] ) {
+
+			value = value.replace(rxhtmlTag, fcloseTag);
+
+			try {
+				for ( var i = 0, l = this.length; i < l; i++ ) {
+					// Remove element nodes and prevent memory leaks
+					if ( this[i].nodeType === 1 ) {
+						jQuery.cleanData( this[i].getElementsByTagName("*") );
+						this[i].innerHTML = value;
+					}
+				}
+
+			// If using innerHTML throws an exception, use the fallback method
+			} catch(e) {
+				this.empty().append( value );
+			}
+
+		} else if ( jQuery.isFunction( value ) ) {
+			this.each(function(i){
+				var self = jQuery(this), old = self.html();
+				self.empty().append(function(){
+					return value.call( this, i, old );
+				});
+			});
+
+		} else {
+			this.empty().append( value );
+		}
+
+		return this;
+	},
+
+	replaceWith: function( value ) {
+		if ( this[0] && this[0].parentNode ) {
+			// Make sure that the elements are removed from the DOM before they are inserted
+			// this can help fix replacing a parent with child elements
+			if ( jQuery.isFunction( value ) ) {
+				return this.each(function(i) {
+					var self = jQuery(this), old = self.html();
+					self.replaceWith( value.call( this, i, old ) );
+				});
+			}
+
+			if ( typeof value !== "string" ) {
+				value = jQuery(value).detach();
+			}
+
+			return this.each(function() {
+				var next = this.nextSibling, parent = this.parentNode;
+
+				jQuery(this).remove();
+
+				if ( next ) {
+					jQuery(next).before( value );
+				} else {
+					jQuery(parent).append( value );
+				}
+			});
+		} else {
+			return this.pushStack( jQuery(jQuery.isFunction(value) ? value() : value), "replaceWith", value );
+		}
+	},
+
+	detach: function( selector ) {
+		return this.remove( selector, true );
+	},
+
+	domManip: function( args, table, callback ) {
+		var results, first, value = args[0], scripts = [], fragment, parent;
+
+		// We can't cloneNode fragments that contain checked, in WebKit
+		if ( !jQuery.support.checkClone && arguments.length === 3 && typeof value === "string" && rchecked.test( value ) ) {
+			return this.each(function() {
+				jQuery(this).domManip( args, table, callback, true );
+			});
+		}
+
+		if ( jQuery.isFunction(value) ) {
+			return this.each(function(i) {
+				var self = jQuery(this);
+				args[0] = value.call(this, i, table ? self.html() : undefined);
+				self.domManip( args, table, callback );
+			});
+		}
+
+		if ( this[0] ) {
+			parent = value && value.parentNode;
+
+			// If we're in a fragment, just use that instead of building a new one
+			if ( jQuery.support.parentNode && parent && parent.nodeType === 11 && parent.childNodes.length === this.length ) {
+				results = { fragment: parent };
+
+			} else {
+				results = buildFragment( args, this, scripts );
+			}
+			
+			fragment = results.fragment;
+			
+			if ( fragment.childNodes.length === 1 ) {
+				first = fragment = fragment.firstChild;
+			} else {
+				first = fragment.firstChild;
+			}
+
+			if ( first ) {
+				table = table && jQuery.nodeName( first, "tr" );
+
+				for ( var i = 0, l = this.length; i < l; i++ ) {
+					callback.call(
+						table ?
+							root(this[i], first) :
+							this[i],
+						i > 0 || results.cacheable || this.length > 1  ?
+							fragment.cloneNode(true) :
+							fragment
+					);
+				}
+			}
+
+			if ( scripts.length ) {
+				jQuery.each( scripts, evalScript );
+			}
+		}
+
+		return this;
+
+		function root( elem, cur ) {
+			return jQuery.nodeName(elem, "table") ?
+				(elem.getElementsByTagName("tbody")[0] ||
+				elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
+				elem;
+		}
+	}
+});
+
+function cloneCopyEvent(orig, ret) {
+	var i = 0;
+
+	ret.each(function() {
+		if ( this.nodeName !== (orig[i] && orig[i].nodeName) ) {
+			return;
+		}
+
+		var oldData = jQuery.data( orig[i++] ), curData = jQuery.data( this, oldData ), events = oldData && oldData.events;
+
+		if ( events ) {
+			delete curData.handle;
+			curData.events = {};
+
+			for ( var type in events ) {
+				for ( var handler in events[ type ] ) {
+					jQuery.event.add( this, type, events[ type ][ handler ], events[ type ][ handler ].data );
+				}
+			}
+		}
+	});
+}
+
+function buildFragment( args, nodes, scripts ) {
+	var fragment, cacheable, cacheresults,
+		doc = (nodes && nodes[0] ? nodes[0].ownerDocument || nodes[0] : document);
+
+	// Only cache "small" (1/2 KB) strings that are associated with the main document
+	// Cloning options loses the selected state, so don't cache them
+	// IE 6 doesn't like it when you put <object> or <embed> elements in a fragment
+	// Also, WebKit does not clone 'checked' attributes on cloneNode, so don't cache
+	if ( args.length === 1 && typeof args[0] === "string" && args[0].length < 512 && doc === document &&
+		!rnocache.test( args[0] ) && (jQuery.support.checkClone || !rchecked.test( args[0] )) ) {
+
+		cacheable = true;
+		cacheresults = jQuery.fragments[ args[0] ];
+		if ( cacheresults ) {
+			if ( cacheresults !== 1 ) {
+				fragment = cacheresults;
+			}
+		}
+	}
+
+	if ( !fragment ) {
+		fragment = doc.createDocumentFragment();
+		jQuery.clean( args, doc, fragment, scripts );
+	}
+
+	if ( cacheable ) {
+		jQuery.fragments[ args[0] ] = cacheresults ? fragment : 1;
+	}
+
+	return { fragment: fragment, cacheable: cacheable };
+}
+
+jQuery.fragments = {};
+
+jQuery.each({
+	appendTo: "append",
+	prependTo: "prepend",
+	insertBefore: "before",
+	insertAfter: "after",
+	replaceAll: "replaceWith"
+}, function( name, original ) {
+	jQuery.fn[ name ] = function( selector ) {
+		var ret = [], insert = jQuery( selector ),
+			parent = this.length === 1 && this[0].parentNode;
+		
+		if ( parent && parent.nodeType === 11 && parent.childNodes.length === 1 && insert.length === 1 ) {
+			insert[ original ]( this[0] );
+			return this;
+			
+		} else {
+			for ( var i = 0, l = insert.length; i < l; i++ ) {
+				var elems = (i > 0 ? this.clone(true) : this).get();
+				jQuery.fn[ original ].apply( jQuery(insert[i]), elems );
+				ret = ret.concat( elems );
+			}
+		
+			return this.pushStack( ret, name, insert.selector );
+		}
+	};
+});
+
+jQuery.extend({
+	clean: function( elems, context, fragment, scripts ) {
+		context = context || document;
+
+		// !context.createElement fails in IE with an error but returns typeof 'object'
+		if ( typeof context.createElement === "undefined" ) {
+			context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
+		}
+
+		var ret = [];
+
+		for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
+			if ( typeof elem === "number" ) {
+				elem += "";
+			}
+
+			if ( !elem ) {
+				continue;
+			}
+
+			// Convert html string into DOM nodes
+			if ( typeof elem === "string" && !rhtml.test( elem ) ) {
+				elem = context.createTextNode( elem );
+
+			} else if ( typeof elem === "string" ) {
+				// Fix "XHTML"-style tags in all browsers
+				elem = elem.replace(rxhtmlTag, fcloseTag);
+
+				// Trim whitespace, otherwise indexOf won't work as expected
+				var tag = (rtagName.exec( elem ) || ["", ""])[1].toLowerCase(),
+					wrap = wrapMap[ tag ] || wrapMap._default,
+					depth = wrap[0],
+					div = context.createElement("div");
+
+				// Go to html and back, then peel off extra wrappers
+				div.innerHTML = wrap[1] + elem + wrap[2];
+
+				// Move to the right depth
+				while ( depth-- ) {
+					div = div.lastChild;
+				}
+
+				// Remove IE's autoinserted <tbody> from table fragments
+				if ( !jQuery.support.tbody ) {
+
+					// String was a <table>, *may* have spurious <tbody>
+					var hasBody = rtbody.test(elem),
+						tbody = tag === "table" && !hasBody ?
+							div.firstChild && div.firstChild.childNodes :
+
+							// String was a bare <thead> or <tfoot>
+							wrap[1] === "<table>" && !hasBody ?
+								div.childNodes :
+								[];
+
+					for ( var j = tbody.length - 1; j >= 0 ; --j ) {
+						if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length ) {
+							tbody[ j ].parentNode.removeChild( tbody[ j ] );
+						}
+					}
+
+				}
+
+				// IE completely kills leading whitespace when innerHTML is used
+				if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
+					div.insertBefore( context.createTextNode( rleadingWhitespace.exec(elem)[0] ), div.firstChild );
+				}
+
+				elem = div.childNodes;
+			}
+
+			if ( elem.nodeType ) {
+				ret.push( elem );
+			} else {
+				ret = jQuery.merge( ret, elem );
+			}
+		}
+
+		if ( fragment ) {
+			for ( var i = 0; ret[i]; i++ ) {
+				if ( scripts && jQuery.nodeName( ret[i], "script" ) && (!ret[i].type || ret[i].type.toLowerCase() === "text/javascript") ) {
+					scripts.push( ret[i].parentNode ? ret[i].parentNode.removeChild( ret[i] ) : ret[i] );
+				
+				} else {
+					if ( ret[i].nodeType === 1 ) {
+						ret.splice.apply( ret, [i + 1, 0].concat(jQuery.makeArray(ret[i].getElementsByTagName("script"))) );
+					}
+					fragment.appendChild( ret[i] );
+				}
+			}
+		}
+
+		return ret;
+	},
+	
+	cleanData: function( elems ) {
+		var data, id, cache = jQuery.cache,
+			special = jQuery.event.special,
+			deleteExpando = jQuery.support.deleteExpando;
+		
+		for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
+			id = elem[ jQuery.expando ];
+			
+			if ( id ) {
+				data = cache[ id ];
+				
+				if ( data.events ) {
+					for ( var type in data.events ) {
+						if ( special[ type ] ) {
+							jQuery.event.remove( elem, type );
+
+						} else {
+							removeEvent( elem, type, data.handle );
+						}
+					}
+				}
+				
+				if ( deleteExpando ) {
+					delete elem[ jQuery.expando ];
+
+				} else if ( elem.removeAttribute ) {
+					elem.removeAttribute( jQuery.expando );
+				}
+				
+				delete cache[ id ];
+			}
+		}
+	}
+});
+// exclude the following css properties to add px
+var rexclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
+	ralpha = /alpha\([^)]*\)/,
+	ropacity = /opacity=([^)]*)/,
+	rfloat = /float/i,
+	rdashAlpha = /-([a-z])/ig,
+	rupper = /([A-Z])/g,
+	rnumpx = /^-?\d+(?:px)?$/i,
+	rnum = /^-?\d/,
+
+	cssShow = { position: "absolute", visibility: "hidden", display:"block" },
+	cssWidth = [ "Left", "Right" ],
+	cssHeight = [ "Top", "Bottom" ],
+
+	// cache check for defaultView.getComputedStyle
+	getComputedStyle = document.defaultView && document.defaultView.getComputedStyle,
+	// normalize float css property
+	styleFloat = jQuery.support.cssFloat ? "cssFloat" : "styleFloat",
+	fcamelCase = function( all, letter ) {
+		return letter.toUpperCase();
+	};
+
+jQuery.fn.css = function( name, value ) {
+	return access( this, name, value, true, function( elem, name, value ) {
+		if ( value === undefined ) {
+			return jQuery.curCSS( elem, name );
+		}
+		
+		if ( typeof value === "number" && !rexclude.test(name) ) {
+			value += "px";
+		}
+
+		jQuery.style( elem, name, value );
+	});
+};
+
+jQuery.extend({
+	style: function( elem, name, value ) {
+		// don't set styles on text and comment nodes
+		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 ) {
+			return undefined;
+		}
+
+		// ignore negative width and height values #1599
+		if ( (name === "width" || name === "height") && parseFloat(value) < 0 ) {
+			value = undefined;
+		}
+
+		var style = elem.style || elem, set = value !== undefined;
+
+		// IE uses filters for opacity
+		if ( !jQuery.support.opacity && name === "opacity" ) {
+			if ( set ) {
+				// IE has trouble with opacity if it does not have layout
+				// Force it by setting the zoom level
+				style.zoom = 1;
+
+				// Set the alpha filter to set the opacity
+				var opacity = parseInt( value, 10 ) + "" === "NaN" ? "" : "alpha(opacity=" + value * 100 + ")";
+				var filter = style.filter || jQuery.curCSS( elem, "filter" ) || "";
+				style.filter = ralpha.test(filter) ? filter.replace(ralpha, opacity) : opacity;
+			}
+
+			return style.filter && style.filter.indexOf("opacity=") >= 0 ?
+				(parseFloat( ropacity.exec(style.filter)[1] ) / 100) + "":
+				"";
+		}
+
+		// Make sure we're using the right name for getting the float value
+		if ( rfloat.test( name ) ) {
+			name = styleFloat;
+		}
+
+		name = name.replace(rdashAlpha, fcamelCase);
+
+		if ( set ) {
+			style[ name ] = value;
+		}
+
+		return style[ name ];
+	},
+
+	css: function( elem, name, force, extra ) {
+		if ( name === "width" || name === "height" ) {
+			var val, props = cssShow, which = name === "width" ? cssWidth : cssHeight;
+
+			function getWH() {
+				val = name === "width" ? elem.offsetWidth : elem.offsetHeight;
+
+				if ( extra === "border" ) {
+					return;
+				}
+
+				jQuery.each( which, function() {
+					if ( !extra ) {
+						val -= parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
+					}
+
+					if ( extra === "margin" ) {
+						val += parseFloat(jQuery.curCSS( elem, "margin" + this, true)) || 0;
+					} else {
+						val -= parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
+					}
+				});
+			}
+
+			if ( elem.offsetWidth !== 0 ) {
+				getWH();
+			} else {
+				jQuery.swap( elem, props, getWH );
+			}
+
+			return Math.max(0, Math.round(val));
+		}
+
+		return jQuery.curCSS( elem, name, force );
+	},
+
+	curCSS: function( elem, name, force ) {
+		var ret, style = elem.style, filter;
+
+		// IE uses filters for opacity
+		if ( !jQuery.support.opacity && name === "opacity" && elem.currentStyle ) {
+			ret = ropacity.test(elem.currentStyle.filter || "") ?
+				(parseFloat(RegExp.$1) / 100) + "" :
+				"";
+
+			return ret === "" ?
+				"1" :
+				ret;
+		}
+
+		// Make sure we're using the right name for getting the float value
+		if ( rfloat.test( name ) ) {
+			name = styleFloat;
+		}
+
+		if ( !force && style && style[ name ] ) {
+			ret = style[ name ];
+
+		} else if ( getComputedStyle ) {
+
+			// Only "float" is needed here
+			if ( rfloat.test( name ) ) {
+				name = "float";
+			}
+
+			name = name.replace( rupper, "-$1" ).toLowerCase();
+
+			var defaultView = elem.ownerDocument.defaultView;
+
+			if ( !defaultView ) {
+				return null;
+			}
+
+			var computedStyle = defaultView.getComputedStyle( elem, null );
+
+			if ( computedStyle ) {
+				ret = computedStyle.getPropertyValue( name );
+			}
+
+			// We should always get a number back from opacity
+			if ( name === "opacity" && ret === "" ) {
+				ret = "1";
+			}
+
+		} else if ( elem.currentStyle ) {
+			var camelCase = name.replace(rdashAlpha, fcamelCase);
+
+			ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];
+
+			// From the awesome hack by Dean Edwards
+			// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
+
+			// If we're not dealing with a regular pixel number
+			// but a number that has a weird ending, we need to convert it to pixels
+			if ( !rnumpx.test( ret ) && rnum.test( ret ) ) {
+				// Remember the original values
+				var left = style.left, rsLeft = elem.runtimeStyle.left;
+
+				// Put in the new values to get a computed value out
+				elem.runtimeStyle.left = elem.currentStyle.left;
+				style.left = camelCase === "fontSize" ? "1em" : (ret || 0);
+				ret = style.pixelLeft + "px";
+
+				// Revert the changed values
+				style.left = left;
+				elem.runtimeStyle.left = rsLeft;
+			}
+		}
+
+		return ret;
+	},
+
+	// A method for quickly swapping in/out CSS properties to get correct calculations
+	swap: function( elem, options, callback ) {
+		var old = {};
+
+		// Remember the old values, and insert the new ones
+		for ( var name in options ) {
+			old[ name ] = elem.style[ name ];
+			elem.style[ name ] = options[ name ];
+		}
+
+		callback.call( elem );
+
+		// Revert the old values
+		for ( var name in options ) {
+			elem.style[ name ] = old[ name ];
+		}
+	}
+});
+
+if ( jQuery.expr && jQuery.expr.filters ) {
+	jQuery.expr.filters.hidden = function( elem ) {
+		var width = elem.offsetWidth, height = elem.offsetHeight,
+			skip = elem.nodeName.toLowerCase() === "tr";
+
+		return width === 0 && height === 0 && !skip ?
+			true :
+			width > 0 && height > 0 && !skip ?
+				false :
+				jQuery.curCSS(elem, "display") === "none";
+	};
+
+	jQuery.expr.filters.visible = function( elem ) {
+		return !jQuery.expr.filters.hidden( elem );
+	};
+}
+var jsc = now(),
+	rscript = /<script(.|\s)*?\/script>/gi,
+	rselectTextarea = /select|textarea/i,
+	rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i,
+	jsre = /=\?(&|$)/,
+	rquery = /\?/,
+	rts = /(\?|&)_=.*?(&|$)/,
+	rurl = /^(\w+:)?\/\/([^\/?#]+)/,
+	r20 = /%20/g,
+
+	// Keep a copy of the old load method
+	_load = jQuery.fn.load;
+
+jQuery.fn.extend({
+	load: function( url, params, callback ) {
+		if ( typeof url !== "string" ) {
+			return _load.call( this, url );
+
+		// Don't do a request if no elements are being requested
+		} else if ( !this.length ) {
+			return this;
+		}
+
+		var off = url.indexOf(" ");
+		if ( off >= 0 ) {
+			var selector = url.slice(off, url.length);
+			url = url.slice(0, off);
+		}
+
+		// Default to a GET request
+		var type = "GET";
+
+		// If the second parameter was provided
+		if ( params ) {
+			// If it's a function
+			if ( jQuery.isFunction( params ) ) {
+				// We assume that it's the callback
+				callback = params;
+				params = null;
+
+			// Otherwise, build a param string
+			} else if ( typeof params === "object" ) {
+				params = jQuery.param( params, jQuery.ajaxSettings.traditional );
+				type = "POST";
+			}
+		}
+
+		var self = this;
+
+		// Request the remote document
+		jQuery.ajax({
+			url: url,
+			type: type,
+			dataType: "html",
+			data: params,
+			complete: function( res, status ) {
+				// If successful, inject the HTML into all the matched elements
+				if ( status === "success" || status === "notmodified" ) {
+					// See if a selector was specified
+					self.html( selector ?
+						// Create a dummy div to hold the results
+						jQuery("<div />")
+							// inject the contents of the document in, removing the scripts
+							// to avoid any 'Permission Denied' errors in IE
+							.append(res.responseText.replace(rscript, ""))
+
+							// Locate the specified elements
+							.find(selector) :
+
+						// If not, just inject the full result
+						res.responseText );
+				}
+
+				if ( callback ) {
+					self.each( callback, [res.responseText, status, res] );
+				}
+			}
+		});
+
+		return this;
+	},
+
+	serialize: function() {
+		return jQuery.param(this.serializeArray());
+	},
+	serializeArray: function() {
+		return this.map(function() {
+			return this.elements ? jQuery.makeArray(this.elements) : this;
+		})
+		.filter(function() {
+			return this.name && !this.disabled &&
+				(this.checked || rselectTextarea.test(this.nodeName) ||
+					rinput.test(this.type));
+		})
+		.map(function( i, elem ) {
+			var val = jQuery(this).val();
+
+			return val == null ?
+				null :
+				jQuery.isArray(val) ?
+					jQuery.map( val, function( val, i ) {
+						return { name: elem.name, value: val };
+					}) :
+					{ name: elem.name, value: val };
+		}).get();
+	}
+});
+
+// Attach a bunch of functions for handling common AJAX events
+jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split(" "), function( i, o ) {
+	jQuery.fn[o] = function( f ) {
+		return this.bind(o, f);
+	};
+});
+
+jQuery.extend({
+
+	get: function( url, data, callback, type ) {
+		// shift arguments if data argument was omited
+		if ( jQuery.isFunction( data ) ) {
+			type = type || callback;
+			callback = data;
+			data = null;
+		}
+
+		return jQuery.ajax({
+			type: "GET",
+			url: url,
+			data: data,
+			success: callback,
+			dataType: type
+		});
+	},
+
+	getScript: function( url, callback ) {
+		return jQuery.get(url, null, callback, "script");
+	},
+
+	getJSON: function( url, data, callback ) {
+		return jQuery.get(url, data, callback, "json");
+	},
+
+	post: function( url, data, callback, type ) {
+		// shift arguments if data argument was omited
+		if ( jQuery.isFunction( data ) ) {
+			type = type || callback;
+			callback = data;
+			data = {};
+		}
+
+		return jQuery.ajax({
+			type: "POST",
+			url: url,
+			data: data,
+			success: callback,
+			dataType: type
+		});
+	},
+
+	ajaxSetup: function( settings ) {
+		jQuery.extend( jQuery.ajaxSettings, settings );
+	},
+
+	ajaxSettings: {
+		url: location.href,
+		global: true,
+		type: "GET",
+		contentType: "application/x-www-form-urlencoded",
+		processData: true,
+		async: true,
+		/*
+		timeout: 0,
+		data: null,
+		username: null,
+		password: null,
+		traditional: false,
+		*/
+		// Create the request object; Microsoft failed to properly
+		// implement the XMLHttpRequest in IE7 (can't request local files),
+		// so we use the ActiveXObject when it is available
+		// This function can be overriden by calling jQuery.ajaxSetup
+		xhr: window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ?
+			function() {
+				return new window.XMLHttpRequest();
+			} :
+			function() {
+				try {
+					return new window.ActiveXObject("Microsoft.XMLHTTP");
+				} catch(e) {}
+			},
+		accepts: {
+			xml: "application/xml, text/xml",
+			html: "text/html",
+			script: "text/javascript, application/javascript",
+			json: "application/json, text/javascript",
+			text: "text/plain",
+			_default: "*/*"
+		}
+	},
+
+	// Last-Modified header cache for next request
+	lastModified: {},
+	etag: {},
+
+	ajax: function( origSettings ) {
+		var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings);
+		
+		var jsonp, status, data,
+			callbackContext = origSettings && origSettings.context || s,
+			type = s.type.toUpperCase();
+
+		// convert data if not already a string
+		if ( s.data && s.processData && typeof s.data !== "string" ) {
+			s.data = jQuery.param( s.data, s.traditional );
+		}
+
+		// Handle JSONP Parameter Callbacks
+		if ( s.dataType === "jsonp" ) {
+			if ( type === "GET" ) {
+				if ( !jsre.test( s.url ) ) {
+					s.url += (rquery.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";
+				}
+			} else if ( !s.data || !jsre.test(s.data) ) {
+				s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";
+			}
+			s.dataType = "json";
+		}
+
+		// Build temporary JSONP function
+		if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {
+			jsonp = s.jsonpCallback || ("jsonp" + jsc++);
+
+			// Replace the =? sequence both in the query string and the data
+			if ( s.data ) {
+				s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
+			}
+
+			s.url = s.url.replace(jsre, "=" + jsonp + "$1");
+
+			// We need to make sure
+			// that a JSONP style response is executed properly
+			s.dataType = "script";
+
+			// Handle JSONP-style loading
+			window[ jsonp ] = window[ jsonp ] || function( tmp ) {
+				data = tmp;
+				success();
+				complete();
+				// Garbage collect
+				window[ jsonp ] = undefined;
+
+				try {
+					delete window[ jsonp ];
+				} catch(e) {}
+
+				if ( head ) {
+					head.removeChild( script );
+				}
+			};
+		}
+
+		if ( s.dataType === "script" && s.cache === null ) {
+			s.cache = false;
+		}
+
+		if ( s.cache === false && type === "GET" ) {
+			var ts = now();
+
+			// try replacing _= if it is there
+			var ret = s.url.replace(rts, "$1_=" + ts + "$2");
+
+			// if nothing was replaced, add timestamp to the end
+			s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : "");
+		}
+
+		// If data is available, append data to url for get requests
+		if ( s.data && type === "GET" ) {
+			s.url += (rquery.test(s.url) ? "&" : "?") + s.data;
+		}
+
+		// Watch for a new set of requests
+		if ( s.global && ! jQuery.active++ ) {
+			jQuery.event.trigger( "ajaxStart" );
+		}
+
+		// Matches an absolute URL, and saves the domain
+		var parts = rurl.exec( s.url ),
+			remote = parts && (parts[1] && parts[1] !== location.protocol || parts[2] !== location.host);
+
+		// If we're requesting a remote document
+		// and trying to load JSON or Script with a GET
+		if ( s.dataType === "script" && type === "GET" && remote ) {
+			var head = document.getElementsByTagName("head")[0] || document.documentElement;
+			var script = document.createElement("script");
+			script.src = s.url;
+			if ( s.scriptCharset ) {
+				script.charset = s.scriptCharset;
+			}
+
+			// Handle Script loading
+			if ( !jsonp ) {
+				var done = false;
+
+				// Attach handlers for all browsers
+				script.onload = script.onreadystatechange = function() {
+					if ( !done && (!this.readyState ||
+							this.readyState === "loaded" || this.readyState === "complete") ) {
+						done = true;
+						success();
+						complete();
+
+						// Handle memory leak in IE
+						script.onload = script.onreadystatechange = null;
+						if ( head && script.parentNode ) {
+							head.removeChild( script );
+						}
+					}
+				};
+			}
+
+			// Use insertBefore instead of appendChild  to circumvent an IE6 bug.
+			// This arises when a base node is used (#2709 and #4378).
+			head.insertBefore( script, head.firstChild );
+
+			// We handle everything using the script element injection
+			return undefined;
+		}
+
+		var requestDone = false;
+
+		// Create the request object
+		var xhr = s.xhr();
+
+		if ( !xhr ) {
+			return;
+		}
+
+		// Open the socket
+		// Passing null username, generates a login popup on Opera (#2865)
+		if ( s.username ) {
+			xhr.open(type, s.url, s.async, s.username, s.password);
+		} else {
+			xhr.open(type, s.url, s.async);
+		}
+
+		// Need an extra try/catch for cross domain requests in Firefox 3
+		try {
+			// Set the correct header, if data is being sent
+			if ( s.data || origSettings && origSettings.contentType ) {
+				xhr.setRequestHeader("Content-Type", s.contentType);
+			}
+
+			// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+			if ( s.ifModified ) {
+				if ( jQuery.lastModified[s.url] ) {
+					xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
+				}
+
+				if ( jQuery.etag[s.url] ) {
+					xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]);
+				}
+			}
+
+			// Set header so the called script knows that it's an XMLHttpRequest
+			// Only send the header if it's not a remote XHR
+			if ( !remote ) {
+				xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+			}
+
+			// Set the Accepts header for the server, depending on the dataType
+			xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?
+				s.accepts[ s.dataType ] + ", */*" :
+				s.accepts._default );
+		} catch(e) {}
+
+		// Allow custom headers/mimetypes and early abort
+		if ( s.beforeSend && s.beforeSend.call(callbackContext, xhr, s) === false ) {
+			// Handle the global AJAX counter
+			if ( s.global && ! --jQuery.active ) {
+				jQuery.event.trigger( "ajaxStop" );
+			}
+
+			// close opended socket
+			xhr.abort();
+			return false;
+		}
+
+		if ( s.global ) {
+			trigger("ajaxSend", [xhr, s]);
+		}
+
+		// Wait for a response to come back
+		var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) {
+			// The request was aborted
+			if ( !xhr || xhr.readyState === 0 || isTimeout === "abort" ) {
+				// Opera doesn't call onreadystatechange before this point
+				// so we simulate the call
+				if ( !requestDone ) {
+					complete();
+				}
+
+				requestDone = true;
+				if ( xhr ) {
+					xhr.onreadystatechange = jQuery.noop;
+				}
+
+			// The transfer is complete and the data is available, or the request timed out
+			} else if ( !requestDone && xhr && (xhr.readyState === 4 || isTimeout === "timeout") ) {
+				requestDone = true;
+				xhr.onreadystatechange = jQuery.noop;
+
+				status = isTimeout === "timeout" ?
+					"timeout" :
+					!jQuery.httpSuccess( xhr ) ?
+						"error" :
+						s.ifModified && jQuery.httpNotModified( xhr, s.url ) ?
+							"notmodified" :
+							"success";
+
+				var errMsg;
+
+				if ( status === "success" ) {
+					// Watch for, and catch, XML document parse errors
+					try {
+						// process the data (runs the xml through httpData regardless of callback)
+						data = jQuery.httpData( xhr, s.dataType, s );
+					} catch(err) {
+						status = "parsererror";
+						errMsg = err;
+					}
+				}
+
+				// Make sure that the request was successful or notmodified
+				if ( status === "success" || status === "notmodified" ) {
+					// JSONP handles its own success callback
+					if ( !jsonp ) {
+						success();
+					}
+				} else {
+					jQuery.handleError(s, xhr, status, errMsg);
+				}
+
+				// Fire the complete handlers
+				complete();
+
+				if ( isTimeout === "timeout" ) {
+					xhr.abort();
+				}
+
+				// Stop memory leaks
+				if ( s.async ) {
+					xhr = null;
+				}
+			}
+		};
+
+		// Override the abort handler, if we can (IE doesn't allow it, but that's OK)
+		// Opera doesn't fire onreadystatechange at all on abort
+		try {
+			var oldAbort = xhr.abort;
+			xhr.abort = function() {
+				if ( xhr ) {
+					oldAbort.call( xhr );
+				}
+
+				onreadystatechange( "abort" );
+			};
+		} catch(e) { }
+
+		// Timeout checker
+		if ( s.async && s.timeout > 0 ) {
+			setTimeout(function() {
+				// Check to see if the request is still happening
+				if ( xhr && !requestDone ) {
+					onreadystatechange( "timeout" );
+				}
+			}, s.timeout);
+		}
+
+		// Send the data
+		try {
+			xhr.send( type === "POST" || type === "PUT" || type === "DELETE" ? s.data : null );
+		} catch(e) {
+			jQuery.handleError(s, xhr, null, e);
+			// Fire the complete handlers
+			complete();
+		}
+
+		// firefox 1.5 doesn't fire statechange for sync requests
+		if ( !s.async ) {
+			onreadystatechange();
+		}
+
+		function success() {
+			// If a local callback was specified, fire it and pass it the data
+			if ( s.success ) {
+				s.success.call( callbackContext, data, status, xhr );
+			}
+
+			// Fire the global callback
+			if ( s.global ) {
+				trigger( "ajaxSuccess", [xhr, s] );
+			}
+		}
+
+		function complete() {
+			// Process result
+			if ( s.complete ) {
+				s.complete.call( callbackContext, xhr, status);
+			}
+
+			// The request was completed
+			if ( s.global ) {
+				trigger( "ajaxComplete", [xhr, s] );
+			}
+
+			// Handle the global AJAX counter
+			if ( s.global && ! --jQuery.active ) {
+				jQuery.event.trigger( "ajaxStop" );
+			}
+		}
+		
+		function trigger(type, args) {
+			(s.context ? jQuery(s.context) : jQuery.event).trigger(type, args);
+		}
+
+		// return XMLHttpRequest to allow aborting the request etc.
+		return xhr;
+	},
+
+	handleError: function( s, xhr, status, e ) {
+		// If a local callback was specified, fire it
+		if ( s.error ) {
+			s.error.call( s.context || s, xhr, status, e );
+		}
+
+		// Fire the global callback
+		if ( s.global ) {
+			(s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );
+		}
+	},
+
+	// Counter for holding the number of active queries
+	active: 0,
+
+	// Determines if an XMLHttpRequest was successful or not
+	httpSuccess: function( xhr ) {
+		try {
+			// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
+			return !xhr.status && location.protocol === "file:" ||
+				// Opera returns 0 when status is 304
+				( xhr.status >= 200 && xhr.status < 300 ) ||
+				xhr.status === 304 || xhr.status === 1223 || xhr.status === 0;
+		} catch(e) {}
+
+		return false;
+	},
+
+	// Determines if an XMLHttpRequest returns NotModified
+	httpNotModified: function( xhr, url ) {
+		var lastModified = xhr.getResponseHeader("Last-Modified"),
+			etag = xhr.getResponseHeader("Etag");
+
+		if ( lastModified ) {
+			jQuery.lastModified[url] = lastModified;
+		}
+
+		if ( etag ) {
+			jQuery.etag[url] = etag;
+		}
+
+		// Opera returns 0 when status is 304
+		return xhr.status === 304 || xhr.status === 0;
+	},
+
+	httpData: function( xhr, type, s ) {
+		var ct = xhr.getResponseHeader("content-type") || "",
+			xml = type === "xml" || !type && ct.indexOf("xml") >= 0,
+			data = xml ? xhr.responseXML : xhr.responseText;
+
+		if ( xml && data.documentElement.nodeName === "parsererror" ) {
+			jQuery.error( "parsererror" );
+		}
+
+		// Allow a pre-filtering function to sanitize the response
+		// s is checked to keep backwards compatibility
+		if ( s && s.dataFilter ) {
+			data = s.dataFilter( data, type );
+		}
+
+		// The filter can actually parse the response
+		if ( typeof data === "string" ) {
+			// Get the JavaScript object, if JSON is used.
+			if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
+				data = jQuery.parseJSON( data );
+
+			// If the type is "script", eval it in global context
+			} else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {
+				jQuery.globalEval( data );
+			}
+		}
+
+		return data;
+	},
+
+	// Serialize an array of form elements or a set of
+	// key/values into a query string
+	param: function( a, traditional ) {
+		var s = [];
+		
+		// Set traditional to true for jQuery <= 1.3.2 behavior.
+		if ( traditional === undefined ) {
+			traditional = jQuery.ajaxSettings.traditional;
+		}
+		
+		// If an array was passed in, assume that it is an array of form elements.
+		if ( jQuery.isArray(a) || a.jquery ) {
+			// Serialize the form elements
+			jQuery.each( a, function() {
+				add( this.name, this.value );
+			});
+			
+		} else {
+			// If traditional, encode the "old" way (the way 1.3.2 or older
+			// did it), otherwise encode params recursively.
+			for ( var prefix in a ) {
+				buildParams( prefix, a[prefix] );
+			}
+		}
+
+		// Return the resulting serialization
+		return s.join("&").replace(r20, "+");
+
+		function buildParams( prefix, obj ) {
+			if ( jQuery.isArray(obj) ) {
+				// Serialize array item.
+				jQuery.each( obj, function( i, v ) {
+					if ( traditional || /\[\]$/.test( prefix ) ) {
+						// Treat each array item as a scalar.
+						add( prefix, v );
+					} else {
+						// If array item is non-scalar (array or object), encode its
+						// numeric index to resolve deserialization ambiguity issues.
+						// Note that rack (as of 1.0.0) can't currently deserialize
+						// nested arrays properly, and attempting to do so may cause
+						// a server error. Possible fixes are to modify rack's
+						// deserialization algorithm or to provide an option or flag
+						// to force array serialization to be shallow.
+						buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v );
+					}
+				});
+					
+			} else if ( !traditional && obj != null && typeof obj === "object" ) {
+				// Serialize object item.
+				jQuery.each( obj, function( k, v ) {
+					buildParams( prefix + "[" + k + "]", v );
+				});
+					
+			} else {
+				// Serialize scalar item.
+				add( prefix, obj );
+			}
+		}
+
+		function add( key, value ) {
+			// If value is a function, invoke it and return its value
+			value = jQuery.isFunction(value) ? value() : value;
+			s[ s.length ] = encodeURIComponent(key) + "=" + encodeURIComponent(value);
+		}
+	}
+});
+var elemdisplay = {},
+	rfxtypes = /toggle|show|hide/,
+	rfxnum = /^([+-]=)?([\d+-.]+)(.*)$/,
+	timerId,
+	fxAttrs = [
+		// height animations
+		[ "height", "marginTop", "marginBottom", "paddingTop", "paddingBottom" ],
+		// width animations
+		[ "width", "marginLeft", "marginRight", "paddingLeft", "paddingRight" ],
+		// opacity animations
+		[ "opacity" ]
+	];
+
+jQuery.fn.extend({
+	show: function( speed, callback ) {
+		if ( speed || speed === 0) {
+			return this.animate( genFx("show", 3), speed, callback);
+
+		} else {
+			for ( var i = 0, l = this.length; i < l; i++ ) {
+				var old = jQuery.data(this[i], "olddisplay");
+
+				this[i].style.display = old || "";
+
+				if ( jQuery.css(this[i], "display") === "none" ) {
+					var nodeName = this[i].nodeName, display;
+
+					if ( elemdisplay[ nodeName ] ) {
+						display = elemdisplay[ nodeName ];
+
+					} else {
+						var elem = jQuery("<" + nodeName + " />").appendTo("body");
+
+						display = elem.css("display");
+
+						if ( display === "none" ) {
+							display = "block";
+						}
+
+						elem.remove();
+
+						elemdisplay[ nodeName ] = display;
+					}
+
+					jQuery.data(this[i], "olddisplay", display);
+				}
+			}
+
+			// Set the display of the elements in a second loop
+			// to avoid the constant reflow
+			for ( var j = 0, k = this.length; j < k; j++ ) {
+				this[j].style.display = jQuery.data(this[j], "olddisplay") || "";
+			}
+
+			return this;
+		}
+	},
+
+	hide: function( speed, callback ) {
+		if ( speed || speed === 0 ) {
+			return this.animate( genFx("hide", 3), speed, callback);
+
+		} else {
+			for ( var i = 0, l = this.length; i < l; i++ ) {
+				var old = jQuery.data(this[i], "olddisplay");
+				if ( !old && old !== "none" ) {
+					jQuery.data(this[i], "olddisplay", jQuery.css(this[i], "display"));
+				}
+			}
+
+			// Set the display of the elements in a second loop
+			// to avoid the constant reflow
+			for ( var j = 0, k = this.length; j < k; j++ ) {
+				this[j].style.display = "none";
+			}
+
+			return this;
+		}
+	},
+
+	// Save the old toggle function
+	_toggle: jQuery.fn.toggle,
+
+	toggle: function( fn, fn2 ) {
+		var bool = typeof fn === "boolean";
+
+		if ( jQuery.isFunction(fn) && jQuery.isFunction(fn2) ) {
+			this._toggle.apply( this, arguments );
+
+		} else if ( fn == null || bool ) {
+			this.each(function() {
+				var state = bool ? fn : jQuery(this).is(":hidden");
+				jQuery(this)[ state ? "show" : "hide" ]();
+			});
+
+		} else {
+			this.animate(genFx("toggle", 3), fn, fn2);
+		}
+
+		return this;
+	},
+
+	fadeTo: function( speed, to, callback ) {
+		return this.filter(":hidden").css("opacity", 0).show().end()
+					.animate({opacity: to}, speed, callback);
+	},
+
+	animate: function( prop, speed, easing, callback ) {
+		var optall = jQuery.speed(speed, easing, callback);
+
+		if ( jQuery.isEmptyObject( prop ) ) {
+			return this.each( optall.complete );
+		}
+
+		return this[ optall.queue === false ? "each" : "queue" ](function() {
+			var opt = jQuery.extend({}, optall), p,
+				hidden = this.nodeType === 1 && jQuery(this).is(":hidden"),
+				self = this;
+
+			for ( p in prop ) {
+				var name = p.replace(rdashAlpha, fcamelCase);
+
+				if ( p !== name ) {
+					prop[ name ] = prop[ p ];
+					delete prop[ p ];
+					p = name;
+				}
+
+				if ( prop[p] === "hide" && hidden || prop[p] === "show" && !hidden ) {
+					return opt.complete.call(this);
+				}
+
+				if ( ( p === "height" || p === "width" ) && this.style ) {
+					// Store display property
+					opt.display = jQuery.css(this, "display");
+
+					// Make sure that nothing sneaks out
+					opt.overflow = this.style.overflow;
+				}
+
+				if ( jQuery.isArray( prop[p] ) ) {
+					// Create (if needed) and add to specialEasing
+					(opt.specialEasing = opt.specialEasing || {})[p] = prop[p][1];
+					prop[p] = prop[p][0];
+				}
+			}
+
+			if ( opt.overflow != null ) {
+				this.style.overflow = "hidden";
+			}
+
+			opt.curAnim = jQuery.extend({}, prop);
+
+			jQuery.each( prop, function( name, val ) {
+				var e = new jQuery.fx( self, opt, name );
+
+				if ( rfxtypes.test(val) ) {
+					e[ val === "toggle" ? hidden ? "show" : "hide" : val ]( prop );
+
+				} else {
+					var parts = rfxnum.exec(val),
+						start = e.cur(true) || 0;
+
+					if ( parts ) {
+						var end = parseFloat( parts[2] ),
+							unit = parts[3] || "px";
+
+						// We need to compute starting value
+						if ( unit !== "px" ) {
+							self.style[ name ] = (end || 1) + unit;
+							start = ((end || 1) / e.cur(true)) * start;
+							self.style[ name ] = start + unit;
+						}
+
+						// If a +=/-= token was provided, we're doing a relative animation
+						if ( parts[1] ) {
+							end = ((parts[1] === "-=" ? -1 : 1) * end) + start;
+						}
+
+						e.custom( start, end, unit );
+
+					} else {
+						e.custom( start, val, "" );
+					}
+				}
+			});
+
+			// For JS strict compliance
+			return true;
+		});
+	},
+
+	stop: function( clearQueue, gotoEnd ) {
+		var timers = jQuery.timers;
+
+		if ( clearQueue ) {
+			this.queue([]);
+		}
+
+		this.each(function() {
+			// go in reverse order so anything added to the queue during the loop is ignored
+			for ( var i = timers.length - 1; i >= 0; i-- ) {
+				if ( timers[i].elem === this ) {
+					if (gotoEnd) {
+						// force the next step to be the last
+						timers[i](true);
+					}
+
+					timers.splice(i, 1);
+				}
+			}
+		});
+
+		// start the next in the queue if the last step wasn't forced
+		if ( !gotoEnd ) {
+			this.dequeue();
+		}
+
+		return this;
+	}
+
+});
+
+// Generate shortcuts for custom animations
+jQuery.each({
+	slideDown: genFx("show", 1),
+	slideUp: genFx("hide", 1),
+	slideToggle: genFx("toggle", 1),
+	fadeIn: { opacity: "show" },
+	fadeOut: { opacity: "hide" }
+}, function( name, props ) {
+	jQuery.fn[ name ] = function( speed, callback ) {
+		return this.animate( props, speed, callback );
+	};
+});
+
+jQuery.extend({
+	speed: function( speed, easing, fn ) {
+		var opt = speed && typeof speed === "object" ? speed : {
+			complete: fn || !fn && easing ||
+				jQuery.isFunction( speed ) && speed,
+			duration: speed,
+			easing: fn && easing || easing && !jQuery.isFunction(easing) && easing
+		};
+
+		opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
+			jQuery.fx.speeds[opt.duration] || jQuery.fx.speeds._default;
+
+		// Queueing
+		opt.old = opt.complete;
+		opt.complete = function() {
+			if ( opt.queue !== false ) {
+				jQuery(this).dequeue();
+			}
+			if ( jQuery.isFunction( opt.old ) ) {
+				opt.old.call( this );
+			}
+		};
+
+		return opt;
+	},
+
+	easing: {
+		linear: function( p, n, firstNum, diff ) {
+			return firstNum + diff * p;
+		},
+		swing: function( p, n, firstNum, diff ) {
+			return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;
+		}
+	},
+
+	timers: [],
+
+	fx: function( elem, options, prop ) {
+		this.options = options;
+		this.elem = elem;
+		this.prop = prop;
+
+		if ( !options.orig ) {
+			options.orig = {};
+		}
+	}
+
+});
+
+jQuery.fx.prototype = {
+	// Simple function for setting a style value
+	update: function() {
+		if ( this.options.step ) {
+			this.options.step.call( this.elem, this.now, this );
+		}
+
+		(jQuery.fx.step[this.prop] || jQuery.fx.step._default)( this );
+
+		// Set display property to block for height/width animations
+		if ( ( this.prop === "height" || this.prop === "width" ) && this.elem.style ) {
+			this.elem.style.display = "block";
+		}
+	},
+
+	// Get the current size
+	cur: function( force ) {
+		if ( this.elem[this.prop] != null && (!this.elem.style || this.elem.style[this.prop] == null) ) {
+			return this.elem[ this.prop ];
+		}
+
+		var r = parseFloat(jQuery.css(this.elem, this.prop, force));
+		return r && r > -10000 ? r : parseFloat(jQuery.curCSS(this.elem, this.prop)) || 0;
+	},
+
+	// Start an animation from one number to another
+	custom: function( from, to, unit ) {
+		this.startTime = now();
+		this.start = from;
+		this.end = to;
+		this.unit = unit || this.unit || "px";
+		this.now = this.start;
+		this.pos = this.state = 0;
+
+		var self = this;
+		function t( gotoEnd ) {
+			return self.step(gotoEnd);
+		}
+
+		t.elem = this.elem;
+
+		if ( t() && jQuery.timers.push(t) && !timerId ) {
+			timerId = setInterval(jQuery.fx.tick, 13);
+		}
+	},
+
+	// Simple 'show' function
+	show: function() {
+		// Remember where we started, so that we can go back to it later
+		this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );
+		this.options.show = true;
+
+		// Begin the animation
+		// Make sure that we start at a small width/height to avoid any
+		// flash of content
+		this.custom(this.prop === "width" || this.prop === "height" ? 1 : 0, this.cur());
+
+		// Start by showing the element
+		jQuery( this.elem ).show();
+	},
+
+	// Simple 'hide' function
+	hide: function() {
+		// Remember where we started, so that we can go back to it later
+		this.options.orig[this.prop] = jQuery.style( this.elem, this.prop );
+		this.options.hide = true;
+
+		// Begin the animation
+		this.custom(this.cur(), 0);
+	},
+
+	// Each step of an animation
+	step: function( gotoEnd ) {
+		var t = now(), done = true;
+
+		if ( gotoEnd || t >= this.options.duration + this.startTime ) {
+			this.now = this.end;
+			this.pos = this.state = 1;
+			this.update();
+
+			this.options.curAnim[ this.prop ] = true;
+
+			for ( var i in this.options.curAnim ) {
+				if ( this.options.curAnim[i] !== true ) {
+					done = false;
+				}
+			}
+
+			if ( done ) {
+				if ( this.options.display != null ) {
+					// Reset the overflow
+					this.elem.style.overflow = this.options.overflow;
+
+					// Reset the display
+					var old = jQuery.data(this.elem, "olddisplay");
+					this.elem.style.display = old ? old : this.options.display;
+
+					if ( jQuery.css(this.elem, "display") === "none" ) {
+						this.elem.style.display = "block";
+					}
+				}
+
+				// Hide the element if the "hide" operation was done
+				if ( this.options.hide ) {
+					jQuery(this.elem).hide();
+				}
+
+				// Reset the properties, if the item has been hidden or shown
+				if ( this.options.hide || this.options.show ) {
+					for ( var p in this.options.curAnim ) {
+						jQuery.style(this.elem, p, this.options.orig[p]);
+					}
+				}
+
+				// Execute the complete function
+				this.options.complete.call( this.elem );
+			}
+
+			return false;
+
+		} else {
+			var n = t - this.startTime;
+			this.state = n / this.options.duration;
+
+			// Perform the easing function, defaults to swing
+			var specialEasing = this.options.specialEasing && this.options.specialEasing[this.prop];
+			var defaultEasing = this.options.easing || (jQuery.easing.swing ? "swing" : "linear");
+			this.pos = jQuery.easing[specialEasing || defaultEasing](this.state, n, 0, 1, this.options.duration);
+			this.now = this.start + ((this.end - this.start) * this.pos);
+
+			// Perform the next step of the animation
+			this.update();
+		}
+
+		return true;
+	}
+};
+
+jQuery.extend( jQuery.fx, {
+	tick: function() {
+		var timers = jQuery.timers;
+
+		for ( var i = 0; i < timers.length; i++ ) {
+			if ( !timers[i]() ) {
+				timers.splice(i--, 1);
+			}
+		}
+
+		if ( !timers.length ) {
+			jQuery.fx.stop();
+		}
+	},
+		
+	stop: function() {
+		clearInterval( timerId );
+		timerId = null;
+	},
+	
+	speeds: {
+		slow: 600,
+ 		fast: 200,
+ 		// Default speed
+ 		_default: 400
+	},
+
+	step: {
+		opacity: function( fx ) {
+			jQuery.style(fx.elem, "opacity", fx.now);
+		},
+
+		_default: function( fx ) {
+			if ( fx.elem.style && fx.elem.style[ fx.prop ] != null ) {
+				fx.elem.style[ fx.prop ] = (fx.prop === "width" || fx.prop === "height" ? Math.max(0, fx.now) : fx.now) + fx.unit;
+			} else {
+				fx.elem[ fx.prop ] = fx.now;
+			}
+		}
+	}
+});
+
+if ( jQuery.expr && jQuery.expr.filters ) {
+	jQuery.expr.filters.animated = function( elem ) {
+		return jQuery.grep(jQuery.timers, function( fn ) {
+			return elem === fn.elem;
+		}).length;
+	};
+}
+
+function genFx( type, num ) {
+	var obj = {};
+
+	jQuery.each( fxAttrs.concat.apply([], fxAttrs.slice(0,num)), function() {
+		obj[ this ] = type;
+	});
+
+	return obj;
+}
+if ( "getBoundingClientRect" in document.documentElement ) {
+	jQuery.fn.offset = function( options ) {
+		var elem = this[0];
+
+		if ( options ) { 
+			return this.each(function( i ) {
+				jQuery.offset.setOffset( this, options, i );
+			});
+		}
+
+		if ( !elem || !elem.ownerDocument ) {
+			return null;
+		}
+
+		if ( elem === elem.ownerDocument.body ) {
+			return jQuery.offset.bodyOffset( elem );
+		}
+
+		var box = elem.getBoundingClientRect(), doc = elem.ownerDocument, body = doc.body, docElem = doc.documentElement,
+			clientTop = docElem.clientTop || body.clientTop || 0, clientLeft = docElem.clientLeft || body.clientLeft || 0,
+			top  = box.top  + (self.pageYOffset || jQuery.support.boxModel && docElem.scrollTop  || body.scrollTop ) - clientTop,
+			left = box.left + (self.pageXOffset || jQuery.support.boxModel && docElem.scrollLeft || body.scrollLeft) - clientLeft;
+
+		return { top: top, left: left };
+	};
+
+} else {
+	jQuery.fn.offset = function( options ) {
+		var elem = this[0];
+
+		if ( options ) { 
+			return this.each(function( i ) {
+				jQuery.offset.setOffset( this, options, i );
+			});
+		}
+
+		if ( !elem || !elem.ownerDocument ) {
+			return null;
+		}
+
+		if ( elem === elem.ownerDocument.body ) {
+			return jQuery.offset.bodyOffset( elem );
+		}
+
+		jQuery.offset.initialize();
+
+		var offsetParent = elem.offsetParent, prevOffsetParent = elem,
+			doc = elem.ownerDocument, computedStyle, docElem = doc.documentElement,
+			body = doc.body, defaultView = doc.defaultView,
+			prevComputedStyle = defaultView ? defaultView.getComputedStyle( elem, null ) : elem.currentStyle,
+			top = elem.offsetTop, left = elem.offsetLeft;
+
+		while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {
+			if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) {
+				break;
+			}
+
+			computedStyle = defaultView ? defaultView.getComputedStyle(elem, null) : elem.currentStyle;
+			top  -= elem.scrollTop;
+			left -= elem.scrollLeft;
+
+			if ( elem === offsetParent ) {
+				top  += elem.offsetTop;
+				left += elem.offsetLeft;
+
+				if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.nodeName)) ) {
+					top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
+					left += parseFloat( computedStyle.borderLeftWidth ) || 0;
+				}
+
+				prevOffsetParent = offsetParent, offsetParent = elem.offsetParent;
+			}
+
+			if ( jQuery.offset.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" ) {
+				top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
+				left += parseFloat( computedStyle.borderLeftWidth ) || 0;
+			}
+
+			prevComputedStyle = computedStyle;
+		}
+
+		if ( prevComputedStyle.position === "relative" || prevComputedStyle.position === "static" ) {
+			top  += body.offsetTop;
+			left += body.offsetLeft;
+		}
+
+		if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) {
+			top  += Math.max( docElem.scrollTop, body.scrollTop );
+			left += Math.max( docElem.scrollLeft, body.scrollLeft );
+		}
+
+		return { top: top, left: left };
+	};
+}
+
+jQuery.offset = {
+	initialize: function() {
+		var body = document.body, container = document.createElement("div"), innerDiv, checkDiv, table, td, bodyMarginTop = parseFloat( jQuery.curCSS(body, "marginTop", true) ) || 0,
+			html = "<div style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;'><div></div></div><table style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;' cellpadding='0' cellspacing='0'><tr><td></td></tr></table>";
+
+		jQuery.extend( container.style, { position: "absolute", top: 0, left: 0, margin: 0, border: 0, width: "1px", height: "1px", visibility: "hidden" } );
+
+		container.innerHTML = html;
+		body.insertBefore( container, body.firstChild );
+		innerDiv = container.firstChild;
+		checkDiv = innerDiv.firstChild;
+		td = innerDiv.nextSibling.firstChild.firstChild;
+
+		this.doesNotAddBorder = (checkDiv.offsetTop !== 5);
+		this.doesAddBorderForTableAndCells = (td.offsetTop === 5);
+
+		checkDiv.style.position = "fixed", checkDiv.style.top = "20px";
+		// safari subtracts parent border width here which is 5px
+		this.supportsFixedPosition = (checkDiv.offsetTop === 20 || checkDiv.offsetTop === 15);
+		checkDiv.style.position = checkDiv.style.top = "";
+
+		innerDiv.style.overflow = "hidden", innerDiv.style.position = "relative";
+		this.subtractsBorderForOverflowNotVisible = (checkDiv.offsetTop === -5);
+
+		this.doesNotIncludeMarginInBodyOffset = (body.offsetTop !== bodyMarginTop);
+
+		body.removeChild( container );
+		body = container = innerDiv = checkDiv = table = td = null;
+		jQuery.offset.initialize = jQuery.noop;
+	},
+
+	bodyOffset: function( body ) {
+		var top = body.offsetTop, left = body.offsetLeft;
+
+		jQuery.offset.initialize();
+
+		if ( jQuery.offset.doesNotIncludeMarginInBodyOffset ) {
+			top  += parseFloat( jQuery.curCSS(body, "marginTop",  true) ) || 0;
+			left += parseFloat( jQuery.curCSS(body, "marginLeft", true) ) || 0;
+		}
+
+		return { top: top, left: left };
+	},
+	
+	setOffset: function( elem, options, i ) {
+		// set position first, in-case top/left are set even on static elem
+		if ( /static/.test( jQuery.curCSS( elem, "position" ) ) ) {
+			elem.style.position = "relative";
+		}
+		var curElem   = jQuery( elem ),
+			curOffset = curElem.offset(),
+			curTop    = parseInt( jQuery.curCSS( elem, "top",  true ), 10 ) || 0,
+			curLeft   = parseInt( jQuery.curCSS( elem, "left", true ), 10 ) || 0;
+
+		if ( jQuery.isFunction( options ) ) {
+			options = options.call( elem, i, curOffset );
+		}
+
+		var props = {
+			top:  (options.top  - curOffset.top)  + curTop,
+			left: (options.left - curOffset.left) + curLeft
+		};
+		
+		if ( "using" in options ) {
+			options.using.call( elem, props );
+		} else {
+			curElem.css( props );
+		}
+	}
+};
+
+
+jQuery.fn.extend({
+	position: function() {
+		if ( !this[0] ) {
+			return null;
+		}
+
+		var elem = this[0],
+
+		// Get *real* offsetParent
+		offsetParent = this.offsetParent(),
+
+		// Get correct offsets
+		offset       = this.offset(),
+		parentOffset = /^body|html$/i.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
+
+		// Subtract element margins
+		// note: when an element has margin: auto the offsetLeft and marginLeft
+		// are the same in Safari causing offset.left to incorrectly be 0
+		offset.top  -= parseFloat( jQuery.curCSS(elem, "marginTop",  true) ) || 0;
+		offset.left -= parseFloat( jQuery.curCSS(elem, "marginLeft", true) ) || 0;
+
+		// Add offsetParent borders
+		parentOffset.top  += parseFloat( jQuery.curCSS(offsetParent[0], "borderTopWidth",  true) ) || 0;
+		parentOffset.left += parseFloat( jQuery.curCSS(offsetParent[0], "borderLeftWidth", true) ) || 0;
+
+		// Subtract the two offsets
+		return {
+			top:  offset.top  - parentOffset.top,
+			left: offset.left - parentOffset.left
+		};
+	},
+
+	offsetParent: function() {
+		return this.map(function() {
+			var offsetParent = this.offsetParent || document.body;
+			while ( offsetParent && (!/^body|html$/i.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
+				offsetParent = offsetParent.offsetParent;
+			}
+			return offsetParent;
+		});
+	}
+});
+
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( ["Left", "Top"], function( i, name ) {
+	var method = "scroll" + name;
+
+	jQuery.fn[ method ] = function(val) {
+		var elem = this[0], win;
+		
+		if ( !elem ) {
+			return null;
+		}
+
+		if ( val !== undefined ) {
+			// Set the scroll of