<!--
// flag if Netscape 4
var appVer = navigator.appVersion;
var netscape4 = (navigator.appName == "Netscape" && appVer.charAt(0) == "4") ? true : false;

if (document.images)
{
  // pre-cache rollover images
 
  
  
<!-- products page -->

  var water_heaters_off = new Image(156,33)
  water_heaters_off.src = "graphics/water_heaters_off.gif"
  var water_heaters_over = new Image(156,33)
  water_heaters_over.src = "graphics/water_heaters_on.gif" 
  


}

// swap images
function di(id,name)
{
  if (document.images)
    document.images[id].src=eval(name+".src");
}

// -->