// JavaScript Document

   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);  
 }