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.")){
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."));
}
}
}
var input=document.getElementsByTagName("input");
for(var i=0; i<input.length; i++){
if(input[i].getAttribute("type").match("image")){
if(input[i].getAttribute("src").match("_off.")){
input[i].onmouseover = function(){
	this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
}
input[i].onmouseout=function(){
	this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
}
}
}
}
}
}
if(window.addEventListener){
window.addEventListener("load", smartRollover, false);
}else if(window.attachEvent){
window.attachEvent("onload", smartRollover);
}