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