if (document.images)
    {
      preload_image_object = new Image();

      image_url = new Array();
      image_url[0] = "_files/Images/img01.JPG";
      image_url[1] = "_files/Images/img02.JPG";
      image_url[2] = "_files/Images/img03.JPG";
      image_url[3] = "_files/Images/img04.JPG";
	  image_url[4] = "_files/Images/img05.JPG";
	  image_url[5] = "_files/Images/currency.JPG";	  
       var i = 0;
       for(i=0; i<=5; i++) 
         preload_image_object.src = image_url[i];
     }