/* Reference Article:
Dustin Diaz:
http://www.dustindiaz.com/top-ten-javascript/
*/

/* addEvent: simplified event attachment */
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);

/* window 'load' attachment */
function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

/*
createElement function found at http://simon.incutio.com/archive/2003/06/15/javascriptWithXML
*/
function createElement(element) {
	if (typeof document.createElementNS != 'undefined') {
		return document.createElementNS('http://www.w3.org/1999/xhtml', element);
	}
	if (typeof document.createElement != 'undefined') {
		return document.createElement(element);
	}
	return false;
}

/* grab Elements from the DOM by className */
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;
}

/* toggle an element's display */
function toggle(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = '';
	}
}

/* insert an element after a particular node */
function insertAfter(parent, node, referenceNode) {
	parent.insertBefore(node, referenceNode.nextSibling);
}

/* Array prototype, matches value in array: returns bool */
Array.prototype.inArray = function (value) {
	var i;
	for (i=0; i < this.length; i++) {
		if (this[i] === value) {
			return true;
		}
	}
	return false;
};

/* get, set, and delete cookies */
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";
}

// Appends a class attribute to all input forms with the 'type' of that field
// e.g. for submit buttons - <input type="submit" /> will become <input type="submit" class="submit" />)
function appendInputTypeClasses() {
	if ( !document.getElementsByTagName )
	return;
var inputs = document.getElementsByTagName('input');
var inputLen = inputs.length;
	for ( i=0;i<inputLen;i++ ) {
		if ( inputs[i].getAttribute('type') )
		inputs[i].className += ' '+inputs[i].getAttribute('type');
	}
}
addEvent(window,'load',appendInputTypeClasses,false);

// Splintered striper 1.3
// Patrick H. Lauke aka redux / www.splintered.co.uk
// Distributed under the Creative Commons Attribution-ShareAlike license - http://creativecommons.org/licenses/by-sa/2.0/

function striper(parentElementTag, parentElementClass, childElementTag, styleClasses)
{
	var i=0,currentParent,currentChild;
	if ((document.getElementsByTagName)&&(parentElementTag)&&(childElementTag)&&(styleClasses)) {
		var styles = styleClasses.split(',');
		var parentItems = document.getElementsByTagName(parentElementTag);
		while (currentParent = parentItems[i++]) {
			if ((parentElementClass == null)||(currentParent.className == parentElementClass)) {
				var j=0,k=0;
				var childItems = currentParent.getElementsByTagName(childElementTag);
				while (currentChild = childItems[j++]) {
					k = (j+(styles.length-1)) % styles.length;
					currentChild.className = currentChild.className+" "+styles[k];
				}
			}
		}
	}
}

/* quick getElement reference */
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;
}

// new windows script - gets around old-skool "target" attribute
function newWin(url,w,h,menubar,toolbar,location,scrollbar,resizable) {  
	var appWindow = window.open(url, "appWin", "menubar=" + menubar + ", toolbar=" + toolbar + ",location=" + location + ",resizable=" + resizable + ",scrollbars=" + scrollbar + ",left="+((screen.availWidth/2)-(470/2))+",top="+((screen.availHeight/2)-(380/2))+",width=" + w + ",height=" + h);
}

/* Create the new window */
function openInNewWindow(e) {
	var event;
	if (!e) event = window.event;
	else event = e;
	// Abort if a modifier key is pressed
	if (event.shiftKey || event.altKey || event.ctrlKey || event.metaKey) {
		return true;
	}
	else {
		// Change "_blank" to something like "newWindow" to load all links in the same new window
	    var newWindow = window.open(this.getAttribute('href'), '_blank');
		if (newWindow) {
			if (newWindow.focus) {
				newWindow.focus();
			}
			return false;
		}
		return true;
	}
}

/*
Add the openInNewWindow function to the onclick event of links with a class name of "new-window"
*/
function getNewWindowLinks() {
	// Check that the browser is DOM compliant
	if (document.getElementById && document.createElement && document.appendChild) {
		// Change this to the text you want to use to alert the user that a new window will be opened
		//var strNewWindowAlert = " (opens in a new window)";
		// Find all links
		var links = document.getElementsByTagName('a');
		var objWarningText;
		var link;
		for (var i = 0; i < links.length; i++) {
			link = links[i];
			// Find all links with a class name of "non-html"
			if (/\bexternal\b/.test(link.className)) {
				// Create an em element containing the new window warning text and insert it after the link text
				objWarningText = document.createElement("em");
				//objWarningText.appendChild(document.createTextNode(strNewWindowAlert));
				link.appendChild(objWarningText);
				link.onclick = openInNewWindow;
				link.title = " (opens in a new window)";
			}
		}
		objWarningText = null;
	}
}

addLoadEvent(getNewWindowLinks);