function wslRollover() {

	if(document.getElementsByTagName) {
		var images=document.getElementsByTagName("img");
	
		for(var i=0; i<images.length; i++) {
			if(images[i].getAttribute("src").match("-norm.gif")){
				images[i].onmouseover=function() {
					
					this.setAttribute("src",this.getAttribute("src").replace("-norm.gif", "-over.gif"));
				}
				images[i].onmouseout=function() {
					this.setAttribute("src",this.getAttribute("src").replace("-over.gif", "-norm.gif"));
				}
			}
		}
	}
}


if (window.addEventListener) {
	window.addEventListener("load", wslRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", wslRollover);
}