if (document.images){
     pic1on= new Image(200,95);
     pic1on.src="images/brochuredownload_down.gif";  

     pic1off= new Image(200,95);
     pic1off.src="images/brochuredownload_up.gif";

     pic2on= new Image(200,95);
     pic2on.src="images/detailsdownload_down.gif";  

     pic2off= new Image(200,95);
     pic2off.src="images/detailsdownload_up.gif";

     pic3on= new Image(200,95);
     pic3on.src="images/advleft.gif";

     pic4on= new Image(200,95);
     pic4on.src="images/advright.gif";

     pic5on= new Image(200,95);
     pic5on.src="images/enrollnow_down.gif";

     pic5off= new Image(200,95);
     pic5off.src="images/enrollnow_up.gif";

     pic6on= new Image(200,95);
     pic6on.src="images/enrollnow_down.gif";

     pic6off= new Image(200,95);
     pic6off.src="images/enrollnow_up.gif";
}
function lightup(imgName){
   if (document.images)
    {
      imgOn=eval(imgName + "on.src");
      document[imgName].src= imgOn;
    }
}
function turnoff(imgName){
   if (document.images)
    {
      imgOff=eval(imgName + "off.src");
      document[imgName].src= imgOff;
    }
}