//=====   General   =====//
var W3CDOM = document.createElement && document.getElementsByTagName;

if (W3CDOM) {
	document.write("<link rel='stylesheet' type='text/css' href='css/WCRCcss_javascript.css' />");
}

// Simple add event function
function addEvent (obj, evt, fn) { // (what, when, how)
	if (obj.addEventListener) {
		obj.addEventListener(evt, fn, false); //W3C
	} else if (obj.attachEvent) {
		obj.attachEvent('on'+evt, fn); //Microsoft
	}
}









//=====   Background Letters   =====//

function addBackgroundLetters() {

	var documentParagraphs = document.getElementsByTagName('p');
	
	for(var i=0; i<documentParagraphs.length; i++) {
		if (documentParagraphs[i].className == "showFirstLetter") {
			var paragraphText = documentParagraphs[i].innerHTML;
				paragraphText = paragraphText.replace(/<span class="paragraphIntroWord">\w{0,20}<\/span>/,"");
				paragraphText = paragraphText.replace(/<SPAN class="paragraphIntroWord">\w{0,20}<\/SPAN>/,"");	//this line is for IE which converts all tag names into uppercase in regular expressions
				//alert(paragraphText);
				
			var paragraphFirstLetter = paragraphText.charAt(0);
			var color = document.body.className;
			
			firstLetter = document.createElement('div');
			firstLetter.innerHTML = "<img src='images/firstLetters/blue/firstLetter_" + paragraphFirstLetter + ".gif' />";
			firstLetter.className = "firstLetter";
			documentParagraphs[i].appendChild(firstLetter);
		}
	}

}



/======    Dropdown Menu :: Attribute to PPK and his book, visit www.quirksmode.com ======/

function initNavigation() {
 var lists = document.getElementsByTagName('ul');
 for (var i=0;i<lists.length;i++) {
 if (lists[i].className != 'menutree') continue;
 lists[i].onmouseover = navMouseOver;
 lists[i].onmouseout = navMouseOut;
 var listItems = lists[i].getElementsByTagName('li');
 for (var j=0;j<listItems.length;j++) {
 var test = listItems[j].getElementsByTagName('ul')[0];
 if (test) {
 listItems[j].firstChild.onfocus = navMouseOver;
 listItems[j].relatedItem = test;
 }
 }
 }
}

var currentlyOpenedMenus = new Array();
var currentlyFocusedItem;

function navMouseOver(e) {
 var evt = e || window.event;
 var evtTarget = evt.target || evt.srcElement;
 if (evtTarget.nodeName == 'UL') return;
 while (evtTarget.nodeName != 'LI')
 evtTarget = evtTarget.parentNode;
 foldMenuIn(evtTarget);
 if (evtTarget.relatedItem && !evtTarget.relatedItem.opened) {
 evtTarget.className = 'highlight';
 evtTarget.relatedItem.className = 'foldOut';
 evtTarget.relatedItem.opened = true;
 currentlyOpenedMenus.push(evtTarget.relatedItem);
 }
}

function navMouseOut(e) {
 var evt = e || window.event;
 var relatedNode = evt.relatedTarget || evt.toElement;
 foldMenuIn(relatedNode);
}

function foldMenuIn(targetNode) {
 if (!targetNode) return;
 var newCurrentlyOpenedMenus = new Array();
 for (var i=0;i<currentlyOpenedMenus.length;i++) {
 if (!containsElement(currentlyOpenedMenus[i],targetNode)) {
 currentlyOpenedMenus[i].className = '';
 currentlyOpenedMenus[i].parentNode.className = '';
 currentlyOpenedMenus[i].opened = false;
 }
 else
 newCurrentlyOpenedMenus.push(currentlyOpenedMenus[i]);
 }
 currentlyOpenedMenus = newCurrentlyOpenedMenus;
}

function containsElement(obj1,obj2) {
 while (obj2.nodeName != 'HTML') {
 if (obj2 == obj1) return true;
 obj2 = obj2.parentNode;
 }
 return false;
}

addEventSimple(window,"load",initNavigation);

function addEventSimple(obj,evt,fn) {
 if (obj.addEventListener)
 obj.addEventListener(evt,fn,false);
 else if (obj.attachEvent)
 obj.attachEvent('on'+evt,fn);
}

function removeEventSimple(obj,evt,fn) {
 if (obj.removeEventListener)
 obj.removeEventListener(evt,fn,false);
 else if (obj.detachEvent)
 obj.detachEvent('on'+evt,fn);
}

/** PUSH AND SHIFT FOR IE5 **/

function Array_push() {
 var A_p = 0
 for (A_p = 0; A_p < arguments.length; A_p++) {
 this[this.length] = arguments[A_p]
 }
 return this.length
}

if (typeof Array.prototype.push == "undefined") {
 Array.prototype.push = Array_push
}

function Array_shift() {
 var A_s = 0
 var response = this[0]
 for (A_s = 0; A_s < this.length-1; A_s++) {
 this[A_s] = this[A_s + 1]
 }
 this.length--
 return response
}

if (typeof Array.prototype.shift == "undefined") {
 Array.prototype.shift = Array_shift
}


addEvent (window,'load',addBackgroundLetters);
addEvent (window,'load',initNavigation);