/*(function(){
	function smartRollover() {
		if(document.getElementsByTagName) {
			var images = document.getElementsByTagName('img');
			for(var i=0; i < images.length; i++) {
				if(images[i].getAttribute('src').match('_off.'))
				{
					var img  = new Image();
					img.src = images[i].getAttribute('src').replace('_off.', '_on.');
					images[i].onmouseover = function() {
						this.setAttribute('src', this.getAttribute('src').replace('_off.', '_on.'));
					}
					images[i].onmouseout = function() {
						this.setAttribute('src', this.getAttribute('src').replace('_on.', '_off.'));
					}
				}
			}
		}
	}
	
	//Add OnLoad Event
	if(window.addEventListener){
		window.addEventListener('load', smartRollover, false);
	}else if(window.attachEvent){
		window.attachEvent('onload', smartRollover);
	}
})();*/

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, '_o'+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('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

window.onload = initRollovers;