isGoodBrowser = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 3) || ((navigator.appName.indexOf("Explorer") > -1) && parseInt(navigator.appVersion) >= 4);
   ALLIMAGES=32
   i=ALLIMAGES;
   IMGLOADED=false;
   store_name='';
   store_image=new Image();
   
   function ion(img_name){
      if (isGoodBrowser) {
         store_image.src=document.images[img_name].src;
         store_name=img_name;
         document.images[img_name].src=iar[img_name].src;
      }
   }

   function ioff() {
      if (isGoodBrowser && store_name.length>0){
          document.images[store_name].src=store_image.src;
      }
   }
   
   function galt(img_name) {
      i--;
      if (i == 0 && isGoodBrowser) {
      }
   }