function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	
	var aImages1 = document.getElementsByTagName('img');
    var aImages2 = document.getElementsByTagName('input');

	for (var i = 0; i < aImages1.length; i++) {		
		if (aImages1[i].className == 'btn') {
			var src = aImages1[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_on'+ftype);

			aImages1[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages1[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages1[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_on'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
			
		} /*if*/
		
		
	}/*for */
	for (var j = 0; j < aImages2.length; j++) {		
				if (aImages2[j].className == 'btninput') {
					var src = aImages2[j].getAttribute('src');
					var ftype = src.substring(src.lastIndexOf('.'), src.length);
					var hsrc = src.replace(ftype, '_on'+ftype);

					aImages2[j].setAttribute('hsrc', hsrc);
			
					aPreLoad[j] = new Image();
					aPreLoad[j].src = hsrc;
			
					aImages2[j].onmouseover = function() {
						sTempSrc = this.getAttribute('src');
						this.setAttribute('src', this.getAttribute('hsrc'));
					}	
			
					aImages2[j].onmouseout = function() {
						if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_on'+ftype, ftype);
						this.setAttribute('src', sTempSrc);
					}
			
			} /*if2*/
			}/*for2*/
}/*function*/

window.onload = initRollovers;