function initRollovers()
{
	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, '_hover'+ftype);

			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('_hover'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
			
			var j = 1; var loop = true;
			while(loop)
			{
				try { var el = document.getElementById(aImages[i].id+'-hover-'+j); }
				catch (ex) { loop = false; }
				
				if (!el) loop = false;
				
				if (loop)
				{
					el.setAttribute('imgid', aImages[i].id);
					el.onmouseover = function()
					{
						var img = document.getElementById(this.getAttribute('imgid'));
						sTempSrc = img.getAttribute('src');
						img.setAttribute('src', img.getAttribute('hsrc'));
					}
					
					el.onmouseout = function()
					{
						var img = document.getElementById(this.getAttribute('imgid'));
						if (!sTempSrc) sTempSrc = img.getAttribute('src').replace('_hover'+ftype, ftype);
						img.setAttribute('src', sTempSrc);
					}
				}
				
				j++;
			}
		}
	}
}

window.onload = initRollovers;