<!--
  if (document.images)
   {
     homeon= new Image(200,75);
     homeon.src="img/th_home.gif";  
     abouton= new Image(200,75);
     abouton.src="img/th_about.gif"; 
     houseson= new Image(200,75);
     houseson.src="img/th_houses.gif"; 
     decoron= new Image(200,75);
     decoron.src="img/th_decor.gif"; 
     galleryon= new Image(200,75);
     galleryon.src="img/th_gallery.gif"; 
     contacton= new Image(200,75);
     contacton.src="img/th_contact.gif"; 
     stuffon= new Image(200,75);
     stuffon.src="img/th_stuff.gif"; 

     homeoff= new Image(200,75);
     homeoff.src="img/tl_home.gif";
     aboutoff= new Image(200,75);
     aboutoff.src="img/tl_about.gif";
     housesoff= new Image(200,75);
     housesoff.src="img/tl_houses.gif";
     decoroff= new Image(200,75);
     decoroff.src="img/tl_decor.gif";
     galleryoff= new Image(200,75);
     galleryoff.src="img/tl_gallery.gif";
     contactoff= new Image(200,75);
     contactoff.src="img/tl_contact.gif";
     stuffoff= new Image(200,75);
     stuffoff.src="img/tl_stuff.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;
    }
 }
//-->