text: dojo.provide("dojo._base.lang");
  
  // Crockford (ish) functions
  
  dojo.isString = function(/*anything*/ it){
  	//	summary:
  	//		Return true if it is a String
  	return !!arguments.length && it != null && (typeof it == "string" || it instanceof String); // Boolean
  }
  
  dojo.isArray = function(/*anything*/ it){
  	//	summary:
  	//		Return true if it is an Array
  	return it && (it instanceof Array || typeof it == "array"); // Boolean
  }
  
  /*=====
  dojo.isFunction = function(it){
  	// summary: Return true if it is a Function
  	// it: anything
  	//	return: Boolean
  }
  =====*/
  
  dojo.isFunction = (function(){
  	var _isFunction = function(/*anything*/ it){
  		return it && (typeof it == "function" || it instanceof Function); // Boolean
  	};
  
  	return dojo.isSafari ?
  		// only slow this down w/ gratuitious casting in Safari since it's what's b0rken
  		function(/*anything*/ it){
  			if(typeof it == "function" && it == "[object NodeList]"){ return false; }
  			return _isFunction(it); // Boolean
  		} : _isFunction;
  })();
  
  dojo.isObject = function(/*anything*/ it){
  	// summary: 
  	//		Returns true if it is a JavaScript object (or an Array, a Function
  	//		or null)
  	return it !== undefined &&
  		(it === null || typeof it == "object" || dojo.isArray(it) || dojo.isFunction(it)); // Boolean
  }
  
  dojo.isArrayLike = function(/*anything*/ it){
  	//	summary:
  	//		similar to dojo.isArray() but more permissive
  	//	description:
  	//		Doesn't strongly test for "arrayness".  Instead, settles for "isn't
  	//		a string or number and has a length property". Arguments objects
  	//		and DOM collections will return true when passed to
  	//		dojo.isArrayLike(), but will return false when passed to
  	//		dojo.isArray().
  	//	return:
  	//		If it walks like a duck and quicks like a duck, return `true`
  	var d = dojo;
  	return it && it !== undefined &&
  		// keep out built-in constructors (Number, String, ...) which have length
  		// properties
  		!d.isString(it) && !d.isFunction(it) &&
  		!(it.tagName && it.tagName.toLowerCase() == 'form') &&
  		(d.isArray(it) || isFinite(it.length)); // Boolean
  }
  
  dojo.isAlien = function(/*anything*/ it){
  	// summary: 
  	//		Returns true if it is a built-in function or some other kind of
  	//		oddball that *should* report as a function but doesn't
  	return it && !dojo.isFunction(it) && /\{\s*\[native code\]\s*\}/.test(String(it)); // Boolean
  }
  
  dojo.extend = function(/*Object*/ constructor, /*Object...*/ props){
  	// summary:
  	//		Adds all properties and methods of props to constructor's
  	//		prototype, making them available to all instances created with
  	//		constructor.
  	for(var i=1, l=arguments.length; i<l; i++){
  		dojo._mixin(constructor.prototype, arguments[i]);
  	}
  	return constructor; // Object
  }
  
  dojo._hitchArgs = function(scope, method /*,...*/){
  	var pre = dojo._toArray(arguments, 2);
  	var named = dojo.isString(method);
  	return function(){
  		// arrayify arguments
  		var args = dojo._toArray(arguments);
  		// locate our method
  		var f = named ? (scope||dojo.global)[method] : method;
  		// invoke with collected args
  		return f && f.apply(scope || this, pre.concat(args)); // mixed
   	} // Function
  }
  
  dojo.hitch = function(/*Object*/scope, /*Function|String*/method /*,...*/){
  	//	summary: 
  	//		Returns a function that will only ever execute in the a given scope. 
  	//		This allows for easy use of object member functions
  	//		in callbacks and other places in which the "this" keyword may
  	//		otherwise not reference the expected scope. 
  	//		Any number of default positional arguments may be passed as parameters 
  	//		beyond "method".
  	//		Each of these values will be used to "placehold" (similar to curry)
  	//		for the hitched function. 
  	//	scope: 
  	//		The scope to use when method executes. If method is a string, 
  	//		scope is also the object containing method.
  	//	method:
  	//		A function to be hitched to scope, or the name of the method in
  	//		scope to be hitched.
  	//	example:
  	//	|	dojo.hitch(foo, "bar")(); 
  	//		runs foo.bar() in the scope of foo
  	//	example:
  	//	|	dojo.hitch(foo, myFunction);
  	//		returns a function that runs myFunction in the scope of foo
  	if(arguments.length > 2){
  		return dojo._hitchArgs.apply(dojo, arguments); // Function
  	}
  	if(!method){
  		method = scope;
  		scope = null;
  	}
  	if(dojo.isString(method)){
  		scope = scope || dojo.global;
  		if(!scope[method]){ throw(['dojo.hitch: scope["', method, '"] is null (scope="', scope, '")'].join('')); }
  		return function(){ return scope[method].apply(scope, arguments || []); }; // Function
  	}
  	return !scope ? method : function(){ return method.apply(scope, arguments || []); }; // Function
  }
  
  /*=====
  dojo.delegate = function(obj, props){
  	//	summary:
  	//		returns a new object which "looks" to obj for properties which it
  	//		does not have a value for. Optionally takes a bag of properties to
  	//		seed the returned object with initially. 
  	//	description:
  	//		This is a small implementaton of the Boodman/Crockford delegation
  	//		pattern in JavaScript. An intermediate object constructor mediates
  	//		the prototype chain for the returned object, using it to delegate
  	//		down to obj for property lookup when object-local lookup fails.
  	//		This can be thought of similarly to ES4's "wrap", save that it does
  	//		not act on types but rather on pure objects.
  	//	obj:
  	//		The object to delegate to for properties not found directly on the
  	//		return object or in props.
  	//	props:
  	//		an object containing properties to assign to the returned object
  	//	returns:
  	//		an Object of anonymous type
  	//	example:
  	//	|	var foo = { bar: "baz" };
  	//	|	var thinger = dojo.delegate(foo, { thud: "xyzzy"});
  	//	|	thinger.bar == "baz"; // delegated to foo
  	//	|	foo.thud == undefined; // by definition
  	//	|	thinger.thud == "xyzzy"; // mixed in from props
  	//	|	foo.bar = "thonk";
  	//	|	thinger.bar == "thonk"; // still delegated to foo's bar
  }
  =====*/
  
  
  dojo.delegate = dojo._delegate = function(obj, props){
  
  	// boodman/crockford delegation
  	function TMP(){};
  	TMP.prototype = obj;
  	var tmp = new TMP();
  	if(props){
  		dojo.mixin(tmp, props);
  	}
  	return tmp; // Object
  }
  
  dojo.partial = function(/*Function|String*/method /*, ...*/){
  	//	summary:
  	//		similar to hitch() except that the scope object is left to be
  	//		whatever the execution context eventually becomes.
  	//	description:
  	//		Calling dojo.partial is the functional equivalent of calling:
  	//		|	dojo.hitch(null, funcName, ...);
  	var arr = [ null ];
  	return dojo.hitch.apply(dojo, arr.concat(dojo._toArray(arguments))); // Function
  }
  
  dojo._toArray = function(/*Object*/obj, /*Number?*/offset, /*Array?*/ startWith){
  	//	summary:
  	//		Converts an array-like object (i.e. arguments, DOMCollection) to an
  	//		array. Returns a new Array with the elements of obj.
  	//	obj:
  	//		the object to "arrayify". We expect the object to have, at a
  	//		minimum, a length property which corresponds to integer-indexed
  	//		properties.
  	//	offset:
  	//		the location in obj to start iterating from. Defaults to 0.
  	//		Optional.
  	//	startWith:
  	//		An array to pack with the properties of obj. If provided,
  	//		properties in obj are appended at the end of startWith and
  	//		startWith is the returned array.
  	var arr = startWith||[];
  	for(var x = offset || 0; x < obj.length; x++){
  		arr.push(obj[x]);
  	}
  	return arr; // Array
  }
  
  dojo.clone = function(/*anything*/ o){
  	// summary:
  	//		Clones objects (including DOM nodes) and all children.
  	//		Warning: do not clone cyclic structures.
  	if(!o){ return o; }
  	if(dojo.isArray(o)){
  		var r = [];
  		for(var i = 0; i < o.length; ++i){
  			r.push(dojo.clone(o[i]));
  		}
  		return r; // Array
  	}
  	if(!dojo.isObject(o)){
  		return o;	/*anything*/
  	}
  	if(o.nodeType && o.cloneNode){ // isNode
  		return o.cloneNode(true); // Node
  	}
  	if(o instanceof Date){
  		return new Date(o.getTime());	// Date
  	}
  	// Generic objects
  	var r = new o.constructor(); // specific to dojo.declare()'d classes!
  	for(var i in o){
  		if(!(i in r) || r[i] != o[i]){
  			r[i] = dojo.clone(o[i]);
  		}
  	}
  	return r; // Object
  }
  
  dojo.trim = function(/*String*/ str){
  	// summary: 
  	//		trims whitespaces from both sides of the string
  	// description:
  	//		This version of trim() was selected for inclusion into the base due
  	//		to its compact size and relatively good performance (see Steven
  	//		Levithan's blog:
  	//		http://blog.stevenlevithan.com/archives/faster-trim-javascript).
  	//		The fastest but longest version of this function is located at
  	//		dojo.string.trim()
  	return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');	// String
  }
  