// JavaScript Document
var ImgFolder = "img/";

function on(Name, Info) {
   eval("document.images[\"" + Name + "\"].src = \"" + 
      ImgFolder + Name + "_on.jpg\"");
   window.status = Info;
}

function off(Name) {
   eval("document.images[\"" + Name + "\"].src = \"" + 
      ImgFolder + Name + "_off.jpg\"");
   window.status = "";
}