function initRollovers() {
 if (!document.getElementById) return
 
 var aPreLoad = new Array();
 var sTempSrc;
 var aImages = document.getElementsByTagName('img');
 
 for (var i = 0; i < aImages.length; i++) {  
  if (aImages[i].className == 'imgover') {
   var src = aImages[i].getAttribute('src');
   var ftype = src.substring(src.lastIndexOf('.'), src.length);
   var hsrc = src.replace(ftype, '_over'+ftype);
 
   aImages[i].setAttribute('hsrc', hsrc);
   
   aPreLoad[i] = new Image();
   aPreLoad[i].src = hsrc;   
   
   aImages[i].onmouseover = function() {
    sTempSrc = this.getAttribute('src');     
    this.setAttribute('src', this.getAttribute('hsrc'));     
    fixPNG(this);
   }  
   
   aImages[i].onmouseout = function() {  
    sTempSrc = this.getAttribute('src2').replace('_over'+ftype, ftype);
    this.setAttribute('src', sTempSrc); 
    fixPNG(this);    
   }
   
   aImages[i].setAttribute('src2', aImages[i].getAttribute('src'));  
   fixPNG(aImages[i]);
  }
  if (aImages[i].className == 'imgsel') {
   fixPNG(aImages[i]);
  }
 }
}
 
window.onload = initRollovers;