/*
	Standards Compliant Rollover Script
	Author : Daniel Nolan
	http://www.bleedingego.co.uk/webdev.php
*/

function initImgRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);
			
			hsrc = hsrc.replace('_a_o.','_o.'); // account for active section tabs
			
			aImages[i].setAttribute('hsrc', hsrc);			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

function imgOver(obj,clsname) {
	var src = obj.getAttribute('src');
	var ftype = src.substring(src.lastIndexOf('.'), src.length);
	var hsrc = src.replace(ftype, '_o'+ftype);
	obj.setAttribute('src', hsrc);
	Element.addClassName(obj,clsname);
	obj.onmouseout = function() {obj.setAttribute('src', src);Element.removeClassName(obj,clsname);}
}

function hilite(obj,clsname) {
	Element.addClassName(obj,clsname);
	obj.onmouseout = function() {Element.removeClassName(obj,clsname);}
	//obj.className = clsname;
	//obj.onmouseout = function() {obj.className = '';}
}

function hiliteOther(obj,id,clsname) {
	Element.addClassName(id,clsname);
	obj.onmouseout = function() {Element.removeClassName(id,clsname);}
	//obj.className = clsname;
	//obj.onmouseout = function() {obj.className = '';}
}

function reveal(obj,id,speed) {
	clearRevealEffects(obj);
	obj.AppearEffect = Effect.Appear(id, { duration: speed });
	obj.onmouseout = function() {
		clearRevealEffects(obj);
		obj.FadeEffect = Effect.Fade(id, { duration: speed });
	}
}

function clearRevealEffects(obj)
{
	if (obj.FadeEffect)
	{
		obj.FadeEffect.cancel();
	}
	if (obj.AppearEffect)
	{
		obj.AppearEffect.cancel();
	}
}