<!-- Nav Rollover -->
 function SimpleSwap(el,which){  
  el.src=el.getAttribute(which || "origsrc"); 
 } 
 
 function SimpleSwapSetup(){  
 var x = document.getElementsByTagName("img");  
  for (var i=0;i<x.length;i++){  
 
 var oversrc = x[i].getAttribute("oversrc");  
 if (!oversrc) continue;  
 // preload image  
 // comment the next two lines to disable image pre-loading  
 x[i].oversrc_img = new Image();  
 x[i].oversrc_img.src=oversrc;  
 
 // set event handlers  
  x[i].onmouseover = new Function("SimpleSwap(this,'oversrc');");  
 x[i].onmouseout = new Function("SimpleSwap(this);");  
 
 // save original src  x[i].setAttribute("origsrc",x[i].src);  
 } 
 } 
 var PreSimpleSwapOnload =(window.onload)? window.onload : function(){}; 
 window.onload = function(){PreSimpleSwapOnload(); SimpleSwapSetup();}