/* ===================================
rollover
=================================== */
function initRollovers() {
	if (!document.getElementById) return
	
	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, '_on'+ftype); 

			aImages[i].setAttribute('hsrc', 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('_on'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

//window.onload = initRollovers;


function addEvent(elm,listener,fn){
    try{
        elm.addEventListener(listener,fn,false);
    }catch(e){
        elm.attachEvent("on"+listener,fn);
    }
}
 
addEvent(window,"load",function(){
    initRollovers()
});