//----------------------------|
// START Image Swapping Code  |
//----------------------------|
// Image must have href (anchor) tage given "base-anchor-img-swap" as the css class
// eg. <img src="imagename_0.gif" class="base-anchor-img-swap">
// on mouseover, imagename_0.gif will be swapped with imagename_1.gif

function OnloadLibrary(){
	var t = this;
	t.docLoaded = false;
	t.event = [];
	t.addEvent = function(str){
		t.event[t.event.length] = str;
		return t.event.length; 
	}
	t.loadEvents = function(){
		for(var i=0; i<t.event.length;i++) {
			eval(t.event[i]);
		}
		t.docLoaded = true;
	}
	window.onload = t.loadEvents;
}
var onloadLib = new OnloadLibrary();

function GetElementsClass(){
	var t = this;	
	t.byClassName = function(cls,tag,parent) {
		var d,a,e,i,c;
		d = (parent) ? parent : document;
		if(tag) {
			a = d.all && d.all.tags(tag) || d.getElementsByTagName(tag);
		} else {
			a = d.all || d.getElementsByTagName("*");
		}
		e = [];
		for(i=0,c=0; i<a.length; i++) {
			if(a[i].className == cls) {
				e[c] = a[i];
				c++;
			}
		}
		return e;
	}
	
	
		t.byClassGroup = function(cls,tag,parent) {
		var d,a,e,i,c;
		d = (parent) ? parent : document;
		if(tag) {
			a = d.all && d.all.tags(tag) || d.getElementsByTagName(tag);
		} else {
			a = d.all || d.getElementsByTagName("*");
		}
		e = [];
		for(i=0,c=0; i<a.length; i++) {
			if(a[i].className.indexOf(cls)!=-1) {
				e[c] = a[i];
				c++;
			}
		}
		return e;
	}
	
}
var getElements = new GetElementsClass();

function EasyMouseOverLibrary(){
	var t = this;
	var anchorClickImgSwapClass = "base-anchor-click-img-swap";
	var anchorImgSwapClass = "base-anchor-img-swap";
	var anchorImgSwapClassComplex = "base-anchor-img-swap-complex";
	var inputImgSwapClass = "base-input-img-swap";
	t.constructor = function() {
		t.setAnchorImgSwap();
		t.setAnchorImgSwapComplex();
		t.setInputImgSwap();
		t.setAnchorClickImgSwap();
	}
	t.setAnchorImgSwap = function(){
		var e = getElements.byClassName(anchorImgSwapClass,"A");
		for(var i=0; i<e.length; i++) {
			var imgObj = e[i].getElementsByTagName("IMG")[0];
			if(imgObj){
				e[i].synImg = imgObj;
				var tmpI = new Image();
				tmpI.src = t.swapImage(e[i],0,0);
				e[i].onmouseover = function(){ easyMouseOver.swapImage(this,1,1) };
				e[i].onmouseout = function(){ easyMouseOver.swapImage(this,0,1) };
			}
		}
	}
	t.setAnchorClickImgSwap = function(){
		var e = getElements.byClassName(anchorClickImgSwapClass,"A");
		for(var i=0; i<e.length; i++) {
			var imgObj = e[i].getElementsByTagName("IMG")[0];
			if(imgObj){
				e[i].synImg = imgObj;
				var tmpI = new Image();
				tmpI.src = t.swapImage(e[i],0,0);
				e[i].onclick = function(){ easyMouseOver.swapImage(this,1,1) };
			}
		}
	}
	t.setAnchorImgSwapComplex = function(){
		var e = getElements.byClassGroup(anchorImgSwapClassComplex,"A");
		var uniqueClassSet = new Object();
		for(var i=0; i<e.length; i++){
			var className = e[i].className;
			if(!uniqueClassSet[className]){
				uniqueClassSet[className] = []
				uniqueClassSet[className][0] = e[i];
			}else{
				uniqueClassSet[className][uniqueClassSet[className].length] = e[i];
			}
		}
		for(var j in uniqueClassSet){
			var itemSet = uniqueClassSet[j]		
			for(var k=0; k<itemSet.length; k++){
				var imgObj = itemSet[k].getElementsByTagName("IMG")[0];
				if(imgObj){
					itemSet[k].synImg = imgObj;
					itemSet[k].itemSet = itemSet;
					var tmpI = new Image();
					tmpI.src = t.swapImage(itemSet[k],0,0);
					itemSet[k].onmouseover = function(){ 
						for(var m=0; m<this.itemSet.length; m++){
							easyMouseOver.swapImage(this.itemSet[m],1,1)
						}
					}
					itemSet[k].onmouseout = function(){ 
						for(var m=0; m<this.itemSet.length; m++){
							easyMouseOver.swapImage(this.itemSet[m],0,1)
						}
					}
				}			
			}
		}		
	}
	t.setInputImgSwap = function(){
		var e = getElements.byClassName(inputImgSwapClass,"INPUT");
		for(var i=0; i<e.length; i++) {
			var imgObj = e[i];
			if(imgObj){
				e[i].synImg = imgObj;
				var tmpI = new Image();
				tmpI.src = t.swapImage(e[i],0,0);
				e[i].onmouseover = function(){ easyMouseOver.swapImage(this,1,1) };
				e[i].onmouseout = function(){ easyMouseOver.swapImage(this,0,1) };
			}
		}		
	}
	t.swapImage = function(obj,state,swap){
		var over = "_1.";
		var out = "_0.";
		var str = obj.synImg.src;
		str = (str.indexOf(over)!=-1)?str.replace(over,out):str.replace(out,over);
		if(swap){
			if(state==1 || state==0  && obj.init){
				obj.synImg.src = str;
			}
			obj.init = true;
		}
		return str;
	}
	onloadLib.addEvent("easyMouseOver.constructor()");
}
var easyMouseOver = new EasyMouseOverLibrary();

//----------------------------|
// END Image Swapping Code    |
//----------------------------|