text: /*
   * QUnit - A JavaScript Unit Testing Framework
   * 
   * http://docs.jquery.com/QUnit
   *
   * Copyright (c) 2009 John Resig, Jörn Zaefferer
   * Dual licensed under the MIT (MIT-LICENSE.txt)
   * and GPL (GPL-LICENSE.txt) licenses.
   */
  
  (function(window) {
  
  var defined = {
  	setTimeout: typeof window.setTimeout !== "undefined",
  	sessionStorage: (function() {
  		try {
  			return !!sessionStorage.getItem;
  		} catch(e){
  			return false;
  		}
    })()
  }
  
  var testId = 0;
  
  var Test = function(name, testName, expected, testEnvironmentArg, async, callback) {
  	this.name = name;
  	this.testName = testName;
  	this.expected = expected;
  	this.testEnvironmentArg = testEnvironmentArg;
  	this.async = async;
  	this.callback = callback;
  	this.assertions = [];
  };
  Test.prototype = {
  	init: function() {
  		var tests = id("qunit-tests");
  		if (tests) {
  			var b = document.createElement("strong");
  				b.innerHTML = "Running " + this.name;
  			var li = document.createElement("li");
  				li.appendChild( b );
  				li.id = this.id = "test-output" + testId++;
  			tests.appendChild( li );
  		}
  	},
  	setup: function() {
  		if (this.module != config.previousModule) {
  			if ( this.previousModule ) {
  				QUnit.moduleDone( this.module, config.moduleStats.bad, config.moduleStats.all );
  			}
  			config.previousModule = this.module;
  			config.moduleStats = { all: 0, bad: 0 };
  			QUnit.moduleStart( this.module, this.moduleTestEnvironment );
  		}
  
  		config.current = this;
  		this.testEnvironment = extend({
  			setup: function() {},
  			teardown: function() {}
  		}, this.moduleTestEnvironment);
  		if (this.testEnvironmentArg) {
  			extend(this.testEnvironment, this.testEnvironmentArg);
  		}
  
  		QUnit.testStart( this.testName, this.testEnvironment );
  
  		// allow utility functions to access the current test environment
  		// TODO why??
  		QUnit.current_testEnvironment = this.testEnvironment;
  		
  		try {
  			if ( !config.pollution ) {
  				saveGlobal();
  			}
  
  			this.testEnvironment.setup.call(this.testEnvironment);
  		} catch(e) {
  			// TODO use testName instead of name for no-markup message?
  			QUnit.ok( false, "Setup failed on " + this.name + ": " + e.message );
  		}
  	},
  	run: function() {
  		if ( this.async ) {
  			QUnit.stop();
  		}
  
  		try {
  			this.callback.call(this.testEnvironment);
  		} catch(e) {
  			// TODO use testName instead of name for no-markup message?
  			fail("Test " + this.name + " died, exception and test follows", e, this.callback);
  			QUnit.ok( false, "Died on test #" + (this.assertions.length + 1) + ": " + e.message + " - " + QUnit.jsDump.parse(e) );
  			// else next test will carry the responsibility
  			saveGlobal();
  
  			// Restart the tests if they're blocking
  			if ( config.blocking ) {
  				start();
  			}
  		}
  	},
  	teardown: function() {
  		try {
  			checkPollution();
  			this.testEnvironment.teardown.call(this.testEnvironment);
  		} catch(e) {
  			// TODO use testName instead of name for no-markup message?
  			QUnit.ok( false, "Teardown failed on " + this.name + ": " + e.message );
  		}
  	},
  	finish: function() {
  		if ( this.expected && this.expected != this.assertions.length ) {
  			QUnit.ok( false, "Expected " + this.expected + " assertions, but " + this.assertions.length + " were run" );
  		}
  		
  		var good = 0, bad = 0,
  			tests = id("qunit-tests");
  
  		config.stats.all += this.assertions.length;
  		config.moduleStats.all += this.assertions.length;
  
  		if ( tests ) {
  			var ol  = document.createElement("ol");
  
  			for ( var i = 0; i < this.assertions.length; i++ ) {
  				var assertion = this.assertions[i];
  
  				var li = document.createElement("li");
  				li.className = assertion.result ? "pass" : "fail";
  				li.innerHTML = assertion.message || (assertion.result ? "okay" : "failed");
  				ol.appendChild( li );
  
  				if ( assertion.result ) {
  					good++;
  				} else {
  					bad++;
  					config.stats.bad++;
  					config.moduleStats.bad++;
  				}
  			}
  
  			// store result when possible
  			defined.sessionStorage && sessionStorage.setItem("qunit-" + this.testName, bad);
  
  			if (bad == 0) {
  				ol.style.display = "none";
  			}
  
  			var b = document.createElement("strong");
  			b.innerHTML = this.name + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";
  			
  			addEvent(b, "click", function() {
  				var next = b.nextSibling, display = next.style.display;
  				next.style.display = display === "none" ? "block" : "none";
  			});
  			
  			addEvent(b, "dblclick", function(e) {
  				var target = e && e.target ? e.target : window.event.srcElement;
  				if ( target.nodeName.toLowerCase() == "span" || target.nodeName.toLowerCase() == "b" ) {
  					target = target.parentNode;
  				}
  				if ( window.location && target.nodeName.toLowerCase() === "strong" ) {
  					window.location.search = "?" + encodeURIComponent(getText([target]).replace(/\(.+\)$/, "").replace(/(^\s*|\s*$)/g, ""));
  				}
  			});
  
  			var li = id(this.id);
  			li.className = bad ? "fail" : "pass";
  			li.style.display = resultDisplayStyle(!bad);
  			li.removeChild( li.firstChild );
  			li.appendChild( b );
  			li.appendChild( ol );
  
  			if ( bad ) {
  				var toolbar = id("qunit-testrunner-toolbar");
  				if ( toolbar ) {
  					toolbar.style.display = "block";
  					id("qunit-filter-pass").disabled = null;
  				}
  			}
  
  		} else {
  			for ( var i = 0; i < this.assertions.length; i++ ) {
  				if ( !this.assertions[i].result ) {
  					bad++;
  					config.stats.bad++;
  					config.moduleStats.bad++;
  				}
  			}
  		}
  
  		try {
  			QUnit.reset();
  		} catch(e) {
  			// TODO use testName instead of name for no-markup message?
  			fail("reset() failed, following Test " + this.name + ", exception and reset fn follows", e, QUnit.reset);
  		}
  
  		QUnit.testDone( this.testName, bad, this.assertions.length );
  	},
  	
  	queue: function() {
  		var test = this;
  		synchronize(function() {
  			test.init();
  		});
  		function run() {
  			// each of these can by async
  			synchronize(function() {
  				test.setup();
  			});
  			synchronize(function() {
  				test.run();
  			});
  			synchronize(function() {
  				test.teardown();
  			});
  			synchronize(function() {
  				test.finish();
  			});
  		}
  		// defer when previous test run passed, if storage is available
  		var bad = defined.sessionStorage && +sessionStorage.getItem("qunit-" + this.testName);
  		if (bad) {
  			run();
  		} else {
  			synchronize(run);
  		};
  	}
  	
  }
  
  var QUnit = {
  
  	// call on start of module test to prepend name to all tests
  	module: function(name, testEnvironment) {
  		config.previousModule = config.currentModule;
  		config.currentModule = name;
  		config.currentModuleTestEnviroment = testEnvironment;
  	},
  
  	asyncTest: function(testName, expected, callback) {
  		if ( arguments.length === 2 ) {
  			callback = expected;
  			expected = 0;
  		}
  
  		QUnit.test(testName, expected, callback, true);
  	},
  	
  	test: function(testName, expected, callback, async) {
  		var name = '<span class="test-name">' + testName + '</span>', testEnvironmentArg;
  
  		if ( arguments.length === 2 ) {
  			callback = expected;
  			expected = null;
  		}
  		// is 2nd argument a testEnvironment?
  		if ( expected && typeof expected === 'object') {
  			testEnvironmentArg =  expected;
  			expected = null;
  		}
  
  		if ( config.currentModule ) {
  			name = '<span class="module-name">' + config.currentModule + "</span>: " + name;
  		}
  
  		if ( !validTest(config.currentModule + ": " + testName) ) {
  			return;
  		}
  		
  		var test = new Test(name, testName, expected, testEnvironmentArg, async, callback);
  		test.previousModule = config.previousModule;
  		test.module = config.currentModule;
  		test.moduleTestEnvironment = config.currentModuleTestEnviroment;
  		test.queue();
  	},
  	
  	/**
  	 * Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
  	 */
  	expect: function(asserts) {
  		config.current.expected = asserts;
  	},
  
  	/**
  	 * Asserts true.
  	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
  	 */
  	ok: function(a, msg) {
  		a = !!a;
  		var details = {
  			result: a,
  			message: msg
  		};
  		msg = escapeHtml(msg);
  		QUnit.log(a, msg, details);
  		config.current.assertions.push({
  			result: a,
  			message: msg
  		});
  	},
  
  	/**
  	 * Checks that the first two arguments are equal, with an optional message.
  	 * Prints out both actual and expected values.
  	 *
  	 * Prefered to ok( actual == expected, message )
  	 *
  	 * @example equal( format("Received {0} bytes.", 2), "Received 2 bytes." );
  	 *
  	 * @param Object actual
  	 * @param Object expected
  	 * @param String message (optional)
  	 */
  	equal: function(actual, expected, message) {
  		QUnit.push(expected == actual, actual, expected, message);
  	},
  
  	notEqual: function(actual, expected, message) {
  		QUnit.push(expected != actual, actual, expected, message);
  	},
  	
  	deepEqual: function(actual, expected, message) {
  		QUnit.push(QUnit.equiv(actual, expected), actual, expected, message);
  	},
  
  	notDeepEqual: function(actual, expected, message) {
  		QUnit.push(!QUnit.equiv(actual, expected), actual, expected, message);
  	},
  
  	strictEqual: function(actual, expected, message) {
  		QUnit.push(expected === actual, actual, expected, message);
  	},
  
  	notStrictEqual: function(actual, expected, message) {
  		QUnit.push(expected !== actual, actual, expected, message);
  	},
  
  	raises: function(fn,  message) {
  		try {
  			fn();
  			QUnit.ok( false, message );
  		}
  		catch (e) {
  			QUnit.ok( true, message );
  		}
  	},
  
  	start: function() {
  		// A slight delay, to avoid any current callbacks
  		if ( defined.setTimeout ) {
  			window.setTimeout(function() {
  				if ( config.timeout ) {
  					clearTimeout(config.timeout);
  				}
  
  				config.blocking = false;
  				process();
  			}, 13);
  		} else {
  			config.blocking = false;
  			process();
  		}
  	},
  	
  	stop: function(timeout) {
  		config.blocking = true;
  
  		if ( timeout && defined.setTimeout ) {
  			config.timeout = window.setTimeout(function() {
  				QUnit.ok( false, "Test timed out" );
  				QUnit.start();
  			}, timeout);
  		}
  	}
  
  };
  
  // Backwards compatibility, deprecated
  QUnit.equals = QUnit.equal;
  QUnit.same = QUnit.deepEqual;
  
  // Maintain internal state
  var config = {
  	// The queue of tests to run
  	queue: [],
  
  	// block until document ready
  	blocking: true
  };
  
  // Load paramaters
  (function() {
  	var location = window.location || { search: "", protocol: "file:" },
  		GETParams = location.search.slice(1).split('&');
  
  	for ( var i = 0; i < GETParams.length; i++ ) {
  		GETParams[i] = decodeURIComponent( GETParams[i] );
  		if ( GETParams[i] === "noglobals" ) {
  			GETParams.splice( i, 1 );
  			i--;
  			config.noglobals = true;
  		} else if ( GETParams[i].search('=') > -1 ) {
  			GETParams.splice( i, 1 );
  			i--;
  		}
  	}
  	
  	// restrict modules/tests by get parameters
  	config.filters = GETParams;
  	
  	// Figure out if we're running the tests from a server or not
  	QUnit.isLocal = !!(location.protocol === 'file:');
  })();
  
  // Expose the API as global variables, unless an 'exports'
  // object exists, in that case we assume we're in CommonJS
  if ( typeof exports === "undefined" || typeof require === "undefined" ) {
  	extend(window, QUnit);
  	window.QUnit = QUnit;
  } else {
  	extend(exports, QUnit);
  	exports.QUnit = QUnit;
  }
  
  // define these after exposing globals to keep them in these QUnit namespace only
  extend(QUnit, {
  	config: config,
  
  	// Initialize the configuration options
  	init: function() {
  		extend(config, {
  			stats: { all: 0, bad: 0 },
  			moduleStats: { all: 0, bad: 0 },
  			started: +new Date,
  			updateRate: 1000,
  			blocking: false,
  			autostart: true,
  			autorun: false,
  			filters: [],
  			queue: []
  		});
  
  		var tests = id("qunit-tests"),
  			banner = id("qunit-banner"),
  			result = id("qunit-testresult");
  
  		if ( tests ) {
  			tests.innerHTML = "";
  		}
  
  		if ( banner ) {
  			banner.className = "";
  		}
  
  		if ( result ) {
  			result.parentNode.removeChild( result );
  		}
  	},
  	
  	/**
  	 * Resets the test setup. Useful for tests that modify the DOM.
  	 * 
  	 * If jQuery is available, uses jQuery's html(), otherwise just innerHTML.
  	 */
  	reset: function() {
  		if ( window.jQuery ) {
  			jQuery( "#main, #qunit-fixture" ).html( config.fixture );
  		} else {
  			var main = id( 'main' ) || id( 'qunit-fixture' );
  			if ( main ) {
  				main.innerHTML = config.fixture;
  			}
  		}
  	},
  	
  	/**
  	 * Trigger an event on an element.
  	 *
  	 * @example triggerEvent( document.body, "click" );
  	 *
  	 * @param DOMElement elem
  	 * @param String type
  	 */
  	triggerEvent: function( elem, type, event ) {
  		if ( document.createEvent ) {
  			event = document.createEvent("MouseEvents");
  			event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
  				0, 0, 0, 0, 0, false, false, false, false, 0, null);
  			elem.dispatchEvent( event );
  
  		} else if ( elem.fireEvent ) {
  			elem.fireEvent("on"+type);
  		}
  	},
  	
  	// Safe object type checking
  	is: function( type, obj ) {
  		return QUnit.objectType( obj ) == type;
  	},
  	
  	objectType: function( obj ) {
  		if (typeof obj === "undefined") {
  				return "undefined";
  
  		// consider: typeof null === object
  		}
  		if (obj === null) {
  				return "null";
  		}
  
  		var type = Object.prototype.toString.call( obj )
  			.match(/^\[object\s(.*)\]$/)[1] || '';
  
  		switch (type) {
  				case 'Number':
  						if (isNaN(obj)) {
  								return "nan";
  						} else {
  								return "number";
  						}
  				case 'String':
  				case 'Boolean':
  				case 'Array':
  				case 'Date':
  				case 'RegExp':
  				case 'Function':
  						return type.toLowerCase();
  		}
  		if (typeof obj === "object") {
  				return "object";
  		}
  		return undefined;
  	},
  	
  	push: function(result, actual, expected, message) {
  		var details = {
  			result: result,
  			message: message,
  			actual: actual,
  			expected: expected
  		};
  		
  		message = escapeHtml(message) || (result ? "okay" : "failed");
  		message = '<span class="test-message">' + message + "</span>";
  		expected = escapeHtml(QUnit.jsDump.parse(expected));
  		actual = escapeHtml(QUnit.jsDump.parse(actual));
  		var output = message + '<table><tr class="test-expected"><th>Expected: </th><td><pre>' + expected + '</pre></td></tr>';
  		if (actual != expected) {
  			output += '<tr class="test-actual"><th>Result: </th><td><pre>' + actual + '</pre></td></tr>';
  			output += '<tr class="test-diff"><th>Diff: </th><td><pre>' + QUnit.diff(expected, actual) +'</pre></td></tr>';
  		}
  		if (!result) {
  			var source = sourceFromStacktrace();
  			if (source) {
  				details.source = source;
  				output += '<tr class="test-source"><th>Source: </th><td><pre>' + source +'</pre></td></tr>';
  			}
  		}
  		output += "</table>";
  		
  		QUnit.log(result, message, details);
  		
  		config.current.assertions.push({
  			result: !!result,
  			message: output
  		});
  	},
  	
  	// Logging callbacks
  	begin: function() {},
  	done: function(failures, total) {},
  	log: function(result, message) {},
  	testStart: function(name, testEnvironment) {},
  	testDone: function(name, failures, total) {},
  	moduleStart: function(name, testEnvironment) {},
  	moduleDone: function(name, failures, total) {}
  });
  
  if ( typeof document === "undefined" || document.readyState === "complete" ) {
  	config.autorun = true;
  }
  
  addEvent(window, "load", function() {
  	QUnit.begin();
  	
  	// Initialize the config, saving the execution queue
  	var oldconfig = extend({}, config);
  	QUnit.init();
  	extend(config, oldconfig);
  
  	config.blocking = false;
  
  	var userAgent = id("qunit-userAgent");
  	if ( userAgent ) {
  		userAgent.innerHTML = navigator.userAgent;
  	}
  	var banner = id("qunit-header");
  	if ( banner ) {
  		var paramsIndex = location.href.lastIndexOf(location.search);
  		if ( paramsIndex > -1 ) {
  			var mainPageLocation = location.href.slice(0, paramsIndex);
  			if ( mainPageLocation == location.href ) {
  				banner.innerHTML = '<a href=""> ' + banner.innerHTML + '</a> ';
  			} else {
  				var testName = decodeURIComponent(location.search.slice(1));
  				banner.innerHTML = '<a href="' + mainPageLocation + '">' + banner.innerHTML + '</a> &#8250; <a href="">' + testName + '</a>';
  			}
  		}
  	}
  	
  	var toolbar = id("qunit-testrunner-toolbar");
  	if ( toolbar ) {
  		toolbar.style.display = "none";
  		
  		var filter = document.createElement("input");
  		filter.type = "checkbox";
  		filter.id = "qunit-filter-pass";
  		filter.disabled = true;
  		addEvent( filter, "click", function() {
  			var li = document.getElementsByTagName("li");
  			for ( var i = 0; i < li.length; i++ ) {
  				if ( li[i].className.indexOf("pass") > -1 ) {
  					li[i].style.display = filter.checked ? "none" : "";
  				}
  			}
  		});
  		toolbar.appendChild( filter );
  
  		var label = document.createElement("label");
  		label.setAttribute("for", "qunit-filter-pass");
  		label.innerHTML = "Hide passed tests";
  		toolbar.appendChild( label );
  	}
  
  	var main = id('main') || id('qunit-fixture');
  	if ( main ) {
  		config.fixture = main.innerHTML;
  	}
  
  	if (config.autostart) {
  		QUnit.start();
  	}
  });
  
  function done() {
  	config.autorun = true;
  
  	// Log the last module results
  	if ( config.currentModule ) {
  		QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
  	}
  
  	var banner = id("qunit-banner"),
  		tests = id("qunit-tests"),
  		html = ['Tests completed in ',
  		+new Date - config.started, ' milliseconds.<br/>',
  		'<span class="passed">', config.stats.all - config.stats.bad, '</span> tests of <span class="total">', config.stats.all, '</span> passed, <span class="failed">', config.stats.bad,'</span> failed.'].join('');
  
  	if ( banner ) {
  		banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
  	}
  
  	if ( tests ) {	
  		var result = id("qunit-testresult");
  
  		if ( !result ) {
  			result = document.createElement("p");
  			result.id = "qunit-testresult";
  			result.className = "result";
  			tests.parentNode.insertBefore( result, tests.nextSibling );
  		}
  
  		result.innerHTML = html;
  	}
  
  	QUnit.done( config.stats.bad, config.stats.all );
  }
  
  function validTest( name ) {
  	var i = config.filters.length,
  		run = false;
  
  	if ( !i ) {
  		return true;
  	}
  	
  	while ( i-- ) {
  		var filter = config.filters[i],
  			not = filter.charAt(0) == '!';
  
  		if ( not ) {
  			filter = filter.slice(1);
  		}
  
  		if ( name.indexOf(filter) !== -1 ) {
  			return !not;
  		}
  
  		if ( not ) {
  			run = true;
  		}
  	}
  
  	return run;
  }
  
  // so far supports only Firefox, Chrome and Opera (buggy)
  // could be extended in the future to use something like https://github.com/csnover/TraceKit
  function sourceFromStacktrace() {
  	try {
  		throw new Error();
  	} catch ( e ) {
  		if (e.stacktrace) {
  			// Opera
  			return e.stacktrace.split("\n")[6];
  		} else if (e.stack) {
  			// Firefox, Chrome
  			return e.stack.split("\n")[4];
  		}
  	}
  }
  
  function resultDisplayStyle(passed) {
  	return passed && id("qunit-filter-pass") && id("qunit-filter-pass").checked ? 'none' : '';
  }
  
  function escapeHtml(s) {
  	if (!s) {
  		return "";
  	}
  	s = s + "";
  	return s.replace(/[\&"<>\\]/g, function(s) {
  		switch(s) {
  			case "&": return "&amp;";
  			case "\\": return "\\\\";
  			case '"': return '\"';
  			case "<": return "&lt;";
  			case ">": return "&gt;";
  			default: return s;
  		}
  	});
  }
  
  function synchronize( callback ) {
  	config.queue.push( callback );
  
  	if ( config.autorun && !config.blocking ) {
  		process();
  	}
  }
  
  function process() {
  	var start = (new Date()).getTime();
  
  	while ( config.queue.length && !config.blocking ) {
  		if ( config.updateRate <= 0 || (((new Date()).getTime() - start) < config.updateRate) ) {
  			config.queue.shift()();
  		} else {
  			window.setTimeout( process, 13 );
  			break;
  		}
  	}
    if (!config.blocking && !config.queue.length) {
      done();
    }
  }
  
  function saveGlobal() {
  	config.pollution = [];
  	
  	if ( config.noglobals ) {
  		for ( var key in window ) {
  			config.pollution.push( key );
  		}
  	}
  }
  
  function checkPollution( name ) {
  	var old = config.pollution;
  	saveGlobal();
  	
  	var newGlobals = diff( old, config.pollution );
  	if ( newGlobals.length > 0 ) {
  		ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
  		config.current.expected++;
  	}
  
  	var deletedGlobals = diff( config.pollution, old );
  	if ( deletedGlobals.length > 0 ) {
  		ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
  		config.current.expected++;
  	}
  }
  
  // returns a new Array with the elements that are in a but not in b
  function diff( a, b ) {
  	var result = a.slice();
  	for ( var i = 0; i < result.length; i++ ) {
  		for ( var j = 0; j < b.length; j++ ) {
  			if ( result[i] === b[j] ) {
  				result.splice(i, 1);
  				i--;
  				break;
  			}
  		}
  	}
  	return result;
  }
  
  function fail(message, exception, callback) {
  	if ( typeof console !== "undefined" && console.error && console.warn ) {
  		console.error(message);
  		console.error(exception);
  		console.warn(callback.toString());
  
  	} else if ( window.opera && opera.postError ) {
  		opera.postError(message, exception, callback.toString);
  	}
  }
  
  function extend(a, b) {
  	for ( var prop in b ) {
  		a[prop] = b[prop];
  	}
  
  	return a;
  }
  
  function addEvent(elem, type, fn) {
  	if ( elem.addEventListener ) {
  		elem.addEventListener( type, fn, false );
  	} else if ( elem.attachEvent ) {
  		elem.attachEvent( "on" + type, fn );
  	} else {
  		fn();
  	}
  }
  
  function id(name) {
  	return !!(typeof document !== "undefined" && document && document.getElementById) &&
  		document.getElementById( name );
  }
  
  // Test for equality any JavaScript type.
  // Discussions and reference: http://philrathe.com/articles/equiv
  // Test suites: http://philrathe.com/tests/equiv
  // Author: Philippe Rathé <prathe@gmail.com>
  QUnit.equiv = function () {
  
      var innerEquiv; // the real equiv function
      var callers = []; // stack to decide between skip/abort functions
      var parents = []; // stack to avoiding loops from circular referencing
  
      // Call the o related callback with the given arguments.
      function bindCallbacks(o, callbacks, args) {
          var prop = QUnit.objectType(o);
          if (prop) {
              if (QUnit.objectType(callbacks[prop]) === "function") {
                  return callbacks[prop].apply(callbacks, args);
              } else {
                  return callbacks[prop]; // or undefined
              }
          }
      }
      
      var callbacks = function () {
  
          // for string, boolean, number and null
          function useStrictEquality(b, a) {
              if (b instanceof a.constructor || a instanceof b.constructor) {
                  // to catch short annotaion VS 'new' annotation of a declaration
                  // e.g. var i = 1;
                  //      var j = new Number(1);
                  return a == b;
              } else {
                  return a === b;
              }
          }
  
          return {
              "string": useStrictEquality,
              "boolean": useStrictEquality,
              "number": useStrictEquality,
              "null": useStrictEquality,
              "undefined": useStrictEquality,
  
              "nan": function (b) {
                  return isNaN(b);
              },
  
              "date": function (b, a) {
                  return QUnit.objectType(b) === "date" && a.valueOf() === b.valueOf();
              },
  
              "regexp": function (b, a) {
                  return QUnit.objectType(b) === "regexp" &&
                      a.source === b.source && // the regex itself
                      a.global === b.global && // and its modifers (gmi) ...
                      a.ignoreCase === b.ignoreCase &&
                      a.multiline === b.multiline;
              },
  
              // - skip when the property is a method of an instance (OOP)
              // - abort otherwise,
              //   initial === would have catch identical references anyway
              "function": function () {
                  var caller = callers[callers.length - 1];
                  return caller !== Object &&
                          typeof caller !== "undefined";
              },
  
              "array": function (b, a) {
                  var i, j, loop;
                  var len;
  
                  // b could be an object literal here
                  if ( ! (QUnit.objectType(b) === "array")) {
                      return false;
                  }   
                  
                  len = a.length;
                  if (len !== b.length) { // safe and faster
                      return false;
                  }
                  
                  //track reference to avoid circular references
                  parents.push(a);
                  for (i = 0; i < len; i++) {
                      loop = false;
                      for(j=0;j<parents.length;j++){
                          if(parents[j] === a[i]){
                              loop = true;//dont rewalk array
                          }
                      }
                      if (!loop && ! innerEquiv(a[i], b[i])) {
                          parents.pop();
                          return false;
                      }
                  }
                  parents.pop();
                  return true;
              },
  
              "object": function (b, a) {
                  var i, j, loop;
                  var eq = true; // unless we can proove it
                  var aProperties = [], bProperties = []; // collection of strings
  
                  // comparing constructors is more strict than using instanceof
                  if ( a.constructor !== b.constructor) {
                      return false;
                  }
  
                  // stack constructor before traversing properties
                  callers.push(a.constructor);
                  //track reference to avoid circular references
                  parents.push(a);
                  
                  for (i in a) { // be strict: don't ensures hasOwnProperty and go deep
                      loop = false;
                      for(j=0;j<parents.length;j++){
                          if(parents[j] === a[i])
                              loop = true; //don't go down the same path twice
                      }
                      aProperties.push(i); // collect a's properties
  
                      if (!loop && ! innerEquiv(a[i], b[i])) {
                          eq = false;
                          break;
                      }
                  }
  
                  callers.pop(); // unstack, we are done
                  parents.pop();
  
                  for (i in b) {
                      bProperties.push(i); // collect b's properties
                  }
  
                  // Ensures identical properties name
                  return eq && innerEquiv(aProperties.sort(), bProperties.sort());
              }
          };
      }();
  
      innerEquiv = function () { // can take multiple arguments
          var args = Array.prototype.slice.apply(arguments);
          if (args.length < 2) {
              return true; // end transition
          }
  
          return (function (a, b) {
              if (a === b) {
                  return true; // catch the most you can
              } else if (a === null || b === null || typeof a === "undefined" || typeof b === "undefined" || QUnit.objectType(a) !== QUnit.objectType(b)) {
                  return false; // don't lose time with error prone cases
              } else {
                  return bindCallbacks(a, callbacks, [b, a]);
              }
  
          // apply transition with (1..n) arguments
          })(args[0], args[1]) && arguments.callee.apply(this, args.splice(1, args.length -1));
      };
  
      return innerEquiv;
  
  }();
  
  /**
   * jsDump
   * Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
   * Licensed under BSD (http://www.opensource.org/licenses/bsd-license.php)
   * Date: 5/15/2008
   * @projectDescription Advanced and extensible data dumping for Javascript.
   * @version 1.0.0
   * @author Ariel Flesler
   * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
   */
  QUnit.jsDump = (function() {
  	function quote( str ) {
  		return '"' + str.toString().replace(/"/g, '\\"') + '"';
  	};
  	function literal( o ) {
  		return o + '';	
  	};
  	function join( pre, arr, post ) {
  		var s = jsDump.separator(),
  			base = jsDump.indent(),
  			inner = jsDump.indent(1);
  		if ( arr.join )
  			arr = arr.join( ',' + s + inner );
  		if ( !arr )
  			return pre + post;
  		return [ pre, inner + arr, base + post ].join(s);
  	};
  	function array( arr ) {
  		var i = arr.length,	ret = Array(i);					
  		this.up();
  		while ( i-- )
  			ret[i] = this.parse( arr[i] );				
  		this.down();
  		return join( '[', ret, ']' );
  	};
  	
  	var reName = /^function (\w+)/;
  	
  	var jsDump = {
  		parse:function( obj, type ) { //type is used mostly internally, you can fix a (custom)type in advance
  			var	parser = this.parsers[ type || this.typeOf(obj) ];
  			type = typeof parser;			
  			
  			return type == 'function' ? parser.call( this, obj ) :
  				   type == 'string' ? parser :
  				   this.parsers.error;
  		},
  		typeOf:function( obj ) {
  			var type;
  			if ( obj === null ) {
  				type = "null";
  			} else if (typeof obj === "undefined") {
  				type = "undefined";
  			} else if (QUnit.is("RegExp", obj)) {
  				type = "regexp";
  			} else if (QUnit.is("Date", obj)) {
  				type = "date";
  			} else if (QUnit.is("Function", obj)) {
  				type = "function";
  			} else if (typeof obj.setInterval !== undefined && typeof obj.document !== "undefined" && typeof obj.nodeType === "undefined") {
  				type = "window";
  			} else if (obj.nodeType === 9) {
  				type = "document";
  			} else if (obj.nodeType) {
  				type = "node";
  			} else if (typeof obj === "object" && typeof obj.length === "number" && obj.length >= 0) {
  				type = "array";
  			} else {
  				type = typeof obj;
  			}
  			return type;
  		},
  		separator:function() {
  			return this.multiline ?	this.HTML ? '<br />' : '\n' : this.HTML ? '&nbsp;' : ' ';
  		},
  		indent:function( extra ) {// extra can be a number, shortcut for increasing-calling-decreasing
  			if ( !this.multiline )
  				return '';
  			var chr = this.indentChar;
  			if ( this.HTML )
  				chr = chr.replace(/\t/g,'   ').replace(/ /g,'&nbsp;');
  			return Array( this._depth_ + (extra||0) ).join(chr);
  		},
  		up:function( a ) {
  			this._depth_ += a || 1;
  		},
  		down:function( a ) {
  			this._depth_ -= a || 1;
  		},
  		setParser:function( name, parser ) {
  			this.parsers[name] = parser;
  		},
  		// The next 3 are exposed so you can use them
  		quote:quote, 
  		literal:literal,
  		join:join,
  		//
  		_depth_: 1,
  		// This is the list of parsers, to modify them, use jsDump.setParser
  		parsers:{
  			window: '[Window]',
  			document: '[Document]',
  			error:'[ERROR]', //when no parser is found, shouldn't happen
  			unknown: '[Unknown]',
  			'null':'null',
  			undefined:'undefined',
  			'function':function( fn ) {
  				var ret = 'function',
  					name = 'name' in fn ? fn.name : (reName.exec(fn)||[])[1];//functions never have name in IE
  				if ( name )
  					ret += ' ' + name;
  				ret += '(';
  				
  				ret = [ ret, QUnit.jsDump.parse( fn, 'functionArgs' ), '){'].join('');
  				return join( ret, QUnit.jsDump.parse(fn,'functionCode'), '}' );
  			},
  			array: array,
  			nodelist: array,
  			arguments: array,
  			object:function( map ) {
  				var ret = [ ];
  				QUnit.jsDump.up();
  				for ( var key in map )
  					ret.push( QUnit.jsDump.parse(key,'key') + ': ' + QUnit.jsDump.parse(map[key]) );
  				QUnit.jsDump.down();
  				return join( '{', ret, '}' );
  			},
  			node:function( node ) {
  				var open = QUnit.jsDump.HTML ? '&lt;' : '<',
  					close = QUnit.jsDump.HTML ? '&gt;' : '>';
  					
  				var tag = node.nodeName.toLowerCase(),
  					ret = open + tag;
  					
  				for ( var a in QUnit.jsDump.DOMAttrs ) {
  					var val = node[QUnit.jsDump.DOMAttrs[a]];
  					if ( val )
  						ret += ' ' + a + '=' + QUnit.jsDump.parse( val, 'attribute' );
  				}
  				return ret + close + open + '/' + tag + close;
  			},
  			functionArgs:function( fn ) {//function calls it internally, it's the arguments part of the function
  				var l = fn.length;
  				if ( !l ) return '';				
  				
  				var args = Array(l);
  				while ( l-- )
  					args[l] = String.fromCharCode(97+l);//97 is 'a'
  				return ' ' + args.join(', ') + ' ';
  			},
  			key:quote, //object calls it internally, the key part of an item in a map
  			functionCode:'[code]', //function calls it internally, it's the content of the function
  			attribute:quote, //node calls it internally, it's an html attribute value
  			string:quote,
  			date:quote,
  			regexp:literal, //regex
  			number:literal,
  			'boolean':literal
  		},
  		DOMAttrs:{//attributes to dump from nodes, name=>realName
  			id:'id',
  			name:'name',
  			'class':'className'
  		},
  		HTML:false,//if true, entities are escaped ( <, >, \t, space and \n )
  		indentChar:'  ',//indentation unit
  		multiline:true //if true, items in a collection, are separated by a \n, else just a space.
  	};
  
  	return jsDump;
  })();
  
  // from Sizzle.js
  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;
  };
  
  /*
   * Javascript Diff Algorithm
   *  By John Resig (http://ejohn.org/)
   *  Modified by Chu Alan "sprite"
   *
   * Released under the MIT license.
   *
   * More Info:
   *  http://ejohn.org/projects/javascript-diff-algorithm/
   *  
   * Usage: QUnit.diff(expected, actual)
   * 
   * QUnit.diff("the quick brown fox jumped over", "the quick fox jumps over") == "the  quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over"
   */
  QUnit.diff = (function() {
  	function diff(o, n){
  		var ns = new Object();
  		var os = new Object();
  		
  		for (var i = 0; i < n.length; i++) {
  			if (ns[n[i]] == null) 
  				ns[n[i]] = {
  					rows: new Array(),
  					o: null
  				};
  			ns[n[i]].rows.push(i);
  		}
  		
  		for (var i = 0; i < o.length; i++) {
  			if (os[o[i]] == null) 
  				os[o[i]] = {
  					rows: new Array(),
  					n: null
  				};
  			os[o[i]].rows.push(i);
  		}
  		
  		for (var i in ns) {
  			if (ns[i].rows.length == 1 && typeof(os[i]) != "undefined" && os[i].rows.length == 1) {
  				n[ns[i].rows[0]] = {
  					text: n[ns[i].rows[0]],
  					row: os[i].rows[0]
  				};
  				o[os[i].rows[0]] = {
  					text: o[os[i].rows[0]],
  					row: ns[i].rows[0]
  				};
  			}
  		}
  		
  		for (var i = 0; i < n.length - 1; i++) {
  			if (n[i].text != null && n[i + 1].text == null && n[i].row + 1 < o.length && o[n[i].row + 1].text == null &&
  			n[i + 1] == o[n[i].row + 1]) {
  				n[i + 1] = {
  					text: n[i + 1],
  					row: n[i].row + 1
  				};
  				o[n[i].row + 1] = {
  					text: o[n[i].row + 1],
  					row: i + 1
  				};
  			}
  		}
  		
  		for (var i = n.length - 1; i > 0; i--) {
  			if (n[i].text != null && n[i - 1].text == null && n[i].row > 0 && o[n[i].row - 1].text == null &&
  			n[i - 1] == o[n[i].row - 1]) {
  				n[i - 1] = {
  					text: n[i - 1],
  					row: n[i].row - 1
  				};
  				o[n[i].row - 1] = {
  					text: o[n[i].row - 1],
  					row: i - 1
  				};
  			}
  		}
  		
  		return {
  			o: o,
  			n: n
  		};
  	}
  	
  	return function(o, n){
  		o = o.replace(/\s+$/, '');
  		n = n.replace(/\s+$/, '');
  		var out = diff(o == "" ? [] : o.split(/\s+/), n == "" ? [] : n.split(/\s+/));
  
  		var str = "";
  		
  		var oSpace = o.match(/\s+/g);
  		if (oSpace == null) {
  			oSpace = [" "];
  		}
  		else {
  			oSpace.push(" ");
  		}
  		var nSpace = n.match(/\s+/g);
  		if (nSpace == null) {
  			nSpace = [" "];
  		}
  		else {
  			nSpace.push(" ");
  		}
  		
  		if (out.n.length == 0) {
  			for (var i = 0; i < out.o.length; i++) {
  				str += '<del>' + out.o[i] + oSpace[i] + "</del>";
  			}
  		}
  		else {
  			if (out.n[0].text == null) {
  				for (n = 0; n < out.o.length && out.o[n].text == null; n++) {
  					str += '<del>' + out.o[n] + oSpace[n] + "</del>";
  				}
  			}
  			
  			for (var i = 0; i < out.n.length; i++) {
  				if (out.n[i].text == null) {
  					str += '<ins>' + out.n[i] + nSpace[i] + "</ins>";
  				}
  				else {
  					var pre = "";
  					
  					for (n = out.n[i].row + 1; n < out.o.length && out.o[n].text == null; n++) {
  						pre += '<del>' + out.o[n] + oSpace[n] + "</del>";
  					}
  					str += " " + out.n[i].text + nSpace[i] + pre;
  				}
  			}
  		}
  		
  		return str;
  	};
  })();
  
  })(this);