function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aInputs = document.getElementsByTagName('input');
	var aImages = document.getElementsByTagName('img');	
	var aCells = document.getElementsByTagName('td');
	var aObjects = new Array;
	
	for(var i = 0; i < aInputs.length; i++)
	{
		aObjects.push(aInputs[i]);
	}
	for(var i = 0; i < aImages.length; i++)
	{
		aObjects.push(aImages[i]);
	}	

	
	for (var i = 0; i < aObjects.length; i++) {		
		if (aObjects[i].className == 'imgover') {
			var src = aObjects[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_h'+ftype);

			aObjects[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;

			aObjects[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aObjects[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_h'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
	
	
	for (var i = 0; i < aCells.length; i++) {		
		if (aCells[i].className == 'imgover') {
			var src = aCells[i].getAttribute('background');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_h'+ftype);

			aCells[i].setAttribute('hsrc', hsrc);			
			aCells[i].setAttribute('osrc', src);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aCells[i].onmouseover = function() {
				this.setAttribute('background', this.getAttribute('hsrc'));
			}	
			
			aCells[i].onmouseout = function() {
				this.setAttribute('background', this.getAttribute('osrc'));
			}
		}
	}	
		
	
}

window.onload = initRollovers;