var imageNames = ["company_aboutus","company_history","company_enquiries","company_recruit",
 		"video_intro","multimedia_intro","internet_intro",
 		"video_portfolio","multimedia_portfolio","internet_portfolio",
 		"video_key","multimedia_key","internet_key",
 		"news_general","news_video","news_multimedia","news_internet"];

 
  var images = new Array(imageNames.length);

 function preloadImages(){



   for(var i=0; i<imageNames.length; i++)
   {
      images[i] = new Image();
      images[i].src= "images/" + imageNames[i] + "ROLL.gif";
   }

 }