if (document.images) {
  var preloader_1 = new Image(25,25); 
  preloader_1.src="/wfg/nav/play.gif"; 
  var preloader_2 = new Image(25,25); 
  preloader_2.src="/wfg/nav/artwork.gif"; 
  var preloader_3 = new Image(25,25); 
  preloader_3.src="/wfg/nav/contact.gif"; 
  var preloader_4 = new Image(25,25); 
  preloader_4.src="/wfg/nav/agents.gif"; 
}