function addEvent(obj, type, fn) {
	if (obj.addEventListener) {
		obj.addEventListener(type, fn, false);
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+ type + fn] = fn;
		obj[type + fn] = function() {
			obj["e"+ type + fn](window.event);
		}
		obj.attachEvent("on"+ type, obj[type + fn]);
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+ type] = obj["e"+ type + fn];
	}
}

var EventCache = function() {
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler) {
			listEvents.push(arguments);
		},
		flush : function() {
			var i, item;
			for (i = listEvents.length - 1; i >= 0; i = i - 1)
			{
				item = listEvents[i];
				if (item[0].removeEventListener) {
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if (item[1].substring(0, 2) != "on") {
					item[1] = "on"+ item[1];
				};
				if (item[0].detachEvent) {
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();

addEvent(window, "unload", EventCache.flush);

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != "function") {
		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

function getElementsByClass(searchClass, node, tag) {
	var classElements = new Array();
	if (node == null) {
		node = document;
	}
	if (tag == null) {
		tag = "*";
	}
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+ searchClass +"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if (pattern.test(els[i].className)) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function toggle(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != "none" ) {
		el.style.display = "none";
	}
	else {
		el.style.display = "";
	}
}

function insertAfter(newElement, targetElement) {
	var parent = targetElement.parentNode;
	if (parent.lastChild == targetElement) {
		parent.appendChild(newElement);
	} else {
		parent.insertBefore(newElement, targetElement.nextSibling);
	}
}

function addClass(element, value) {
	if (!element.className) {
		element.className = value;
	} else {
		var newClassName = element.className;
		newClassName += " ";
		newClassName += value;
		element.className = newClassName;
	}
}

Array.prototype.inArray = function (value) {
	var i;
	for (i=0; i < this.length; i++) {
		if (this[i] === value) {
			return true;
		}
	}
	return false;
};

function $() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == "string") {
			element = document.getElementById(element);
		}
		if (arguments.length == 1) {
			return element;
		}
		elements.push(element);
	}
	return elements;
}

function getCookie(name) {
	var start = document.cookie.indexOf(name + "=");
	var len = start + name.length + 1;
	
	if ((!start) && (name != document.cookie.substring(0, name.length))) {
		return null;
	}
	if (start == -1) {
		return null;
	}
	
	var end = document.cookie.indexOf(";", len);
	
	if (end == -1) {
		end = document.cookie.length;
	}
	
	return unescape(document.cookie.substring(len, end));
}

function setCookie(name, value, expires, path, domain, secure) {
	var today = new Date();
	today.setTime(today.getTime());
	if (expires) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date(today.getTime() + (expires));
	document.cookie = name +"="+ escape(value) +
		((expires) ? ";expires="+ expires_date.toGMTString() : "") + //expires.toGMTString()
		((path) ? ";path=" + path : "") +
		((domain) ? ";domain=" + domain : "") +
		((secure) ? ";secure" : "");
}

function deleteCookie(name, path, domain) {
	if (getCookie(name)) document.cookie = name + "=" +
		((path) ? ";path=" + path : "") +
		((domain) ? ";domain=" + domain : "") +
		";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}