var testVer = 0;
    browser_name = navigator.appName;
    browser_version = parseFloat(navigator.appVersion);
    if (browser_name == "Netscape" && browser_version >= 3.0) {
      testVer=1;
    } else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 4.0) {
      testVer=1;
    }
    if (testVer == 1) {
	 anormal = new Image;
      anormal.src = "menu/product.gif";
      alight = new Image;
      alight.src = "menu/product2.gif";
      bnormal = new Image;
      bnormal.src = "menu/e_guide.gif";
      blight = new Image;
      blight.src = "menu/e_guide2.gif";
      cnormal = new Image;
      cnormal.src = "menu/faqs.gif";
      clight = new Image;
      clight.src = "menu/faqs2.gif";
	  dnormal = new Image;
      dnormal.src = "menu/links.gif";
      dlight = new Image;
      dlight.src = "menu/links2.gif";
	  enormal = new Image;
      enormal.src = "menu/request.gif";
      elight = new Image;
      elight.src = "menu/request2.gif";
	  fnormal = new Image;
      fnormal.src = "menu/cust_service.gif";
      flight = new Image;
      flight.src = "menu/cust_service2.gif";
	  gnormal = new Image;
      gnormal.src = "menu/locations.gif";
      glight = new Image;
      glight.src = "menu/locations2.gif";
	  hnormal = new Image;
      hnormal.src = "menu/contact.gif";
      hlight = new Image;
      hlight.src = "menu/contact2.gif";
	  inormal = new Image;
      inormal.src = "menu/home.gif";
      ilight = new Image;
      ilight.src = "menu/home2.gif";
	  jnormal = new Image;
      jnormal.src = "menu/cust_email.gif";
      jlight = new Image;
      jlight.src = "menu/cust_email2.gif";
	  knormal = new Image;
      knormal.src = "menu/dec.gif";
      klight = new Image;
      klight.src = "menu/dec2.gif";
	  lnormal = new Image;
      lnormal.src = "menu/docs-demand.gif";
      llight = new Image;
      llight.src = "menu/docs-demand2.gif";
	  
	  mnormal = new Image;
	  mnormal.src = "menu/freight.gif";
	  mlight = new Image;
	  mlight.src = "menu/freight2.gif";
	  
	  nnormal = new Image;
	  nnormal.src = "menu/insulate.gif";
	  nlight = new Image;
	  nlight.src = "menu/insulate2.gif";

    }
    function doChange( imgName ) {
      if(testVer == 1) {
        document.images[imgName].src = eval(imgName + "light.src");
      }
    }
    function undoChange( imgName ) {
      if(testVer == 1) {
        document.images[imgName].src = eval(imgName + "normal.src");
      }
    }