//"use strict";

// I wonder if I'll ever need this
Element.prototype.isChildOf = function (ContainerObject) 
{ 
	if ("string" === typeof ContainerObject) {
		ContainerObject = document.getElementById(ContainerObject);
	}
	if (!(ContainerObject instanceof Element)) {
		throw new TypeError("Container Object is not an Element");
	}
	var curobj = this;
	do { 
		curobj = curobj.parentNode;
		if (curobj === ContainerObject) {
			return true;
		}
	} while (curobj instanceof Element);
	return false;
};

Element.prototype.appendElement = function (name, text, attr) 
{
	var EN = Code.createCustomElement(name, text, attr);
	this.appendChild(EN);
	return EN;
};
// preferred, if no function parameters are required
Function.prototype.forEvery = function (list)
{
	for (var i = list.length; i--;) {
		if (i in list) {
			this.call(list[i]);
		}
	}
};
// closuring "this" in an out-of-scope call (Events)
Function.prototype.bind = function (obj)
{
	var fn = this;
	return function () {
		return fn.apply(obj, arguments);
	}
}
// by Gavin Kistner
Function.prototype.extend = function (ParentClassOrObject)
{
	if (ParentClassOrObject.constructor == Function) {
		this.prototype = new ParentClassOrObject;
		this.prototype.constructor = this;
		this.prototype.parent = ParentClassOrObject.prototype;
	} 
	else {
		this.prototype = ParentClassOrObject;
		this.prototype.constructor = this;
		this.prototype.parent = ParentClassOrObject;
	}
};

if (!Code && (typeof Code != "object") && (Code !== null)) {
	var Code = {};
}
// by class name
/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/	
Code.getElementsByClassName = function (className, tag, elm) 
{
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) 
		{
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag) ? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for (var i=0, il=elements.length; i<il; i+=1) {
				current = elements[i];
				if (!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) 
		{
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace) ? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for (var j=0, jl=classes.length; j<jl; j+=1) {
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) 
		{
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all) ? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for (var k=0, kl=classes.length; k<kl; k+=1) {
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for (var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for (var m=0, ml=classesToCheck.length; m<ml; m+=1) {
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};
	
// create element
Code.createCustomElement = function (name, text, attr) 
{
	var EN = document.createElement(name);
	var TN = document.createTextNode(text);
	EN.appendChild(TN);
	for (var j in attr) {
		if (attr.hasOwnProperty(j) && (typeof attr[j] != "function")) { 
			var AN = document.createAttribute(j);
			AN.nodeValue = attr[j];
			EN.setAttributeNode(AN);
		}
	}
	return EN;
};
// use cookies
Code.createCookie = function (name, value, days) 
{
	var date, 
		expires = "";
	if (days) {
		date = new Date();
		date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
		expires = "; expires=" + date.toGMTString();
	}
	document.cookie = name + "=" + value + expires + "; path=/";
};

Code.readCookie = function (name) 
{
	var i, l, c, ca, 
		nameEQ = name + "=";
	ca = document.cookie.split(";");
	for (i = 0, l = ca.length; i < l; i++) {
		c = ca[i];
		try {
			c = c.trim();
		}
		catch (e) {
			while (" " === c.charAt(0)) {
				c = c.substring(1);
			}
		}
		if (0 === c.indexOf(nameEQ)) {
			return c.substring(nameEQ.length);
		}
	}
	return null;
};

Code.eraseCookie = function (name) 
{
	Code.createCookie(name, "", -1);
};

function $(name, base, tag)
{
	var first = name.charAt(0);
	if ("#" === first) {
		return document.getElementById(name.substring(1));
	}
	if ("." === first) {
		return Code.getElementsByClassName(name.substring(1), tag, base);
	}
	if (!(base instanceof Element)) {
		base = document;
	}
	return base.getElementsByTagName(name);
}

var ErrorLog = (function ()
{
	var errors = [];
	
	function logError(e)
	{
		var num, trace, text;
		if (e instanceof Error) {
			text  = e.message;
			num   = e.lineNumber || e.number || "-";
			trace = e.stacktrace || e.stack  || "-";
		}
		else if ("string" === typeof e) {
			text  = e;
			trace = num = "-";
		}
		else {
		//	alert("Unable to log Error");
			return false;
		}
		errors.push({ 
			time  : (new Date()).toString(),
			msg   : text,
			line  : num,
			stack : trace 
		});
		return true;
	}
	
	function getProperty(name, num)
	{
		if (undefined === num) {
			num = errors.length - 1;
		}
		if (0 < errors.length && num < errors.length) {
			return errors[num][name];
		}
		return null;
	}
	
	return {
		// public interface
		log : function (e)
		{
			if (console) {
				console.info(e);
			}
			return logError(e);
		},
		all : function ()
		{
			return errors;
		},
		getMessage : function (num)
		{
			return getProperty("msg", num);
		},
		getTime : function (num)
		{
			return getProperty("time", num);
		},
		getLine : function (num)
		{
			return getProperty("line", num);
		},
		getStackTrace : function (num)
		{
			return getProperty("stack", num);
		},
		toString : function ()
		{
			var i, txt = "";
			for (i = errors.length; i--;) {
				txt += "<p>" + errors[i].msg + "</p>";
			}
			return txt || "<p>no JavaScript errors</p>";
		}
	}
})();