// JavaScript Document

   if(document.images) {

   welcome_off = new Image(500,20);
   welcome_on = new Image(500,20);

   }

   if(document.images) {

   welcome_off.src = "img/welcome.jpg";
   welcome_on.src = "img/welcome_on.jpg";

   }

   function swapit(imgLocation, imgName) {
   if(document.images) {
   document.images[imgLocation].src = eval(imgName + ".src");
   }
   }