if (document.images) 
{
   img1 = new Image();
   img2 = new Image();
   img3 = new Image();
   img4 = new Image();
   img5 = new Image();
   img6 = new Image();
   img7 = new Image();
   img8 = new Image();
   img9 = new Image();
   img10 = new Image();
   img11 = new Image();
   img12 = new Image();
   img13 = new Image();
   img14 = new Image();
   img15 = new Image();
   img1.src = "images/scroll-arrow-on.png";
   img2.src = "images/bg-tab-on.gif";
   img3.src = "images/icon-rss-on.png";
   img4.src = "images/icon-twitter-on.png";
   img5.src = "images/icon-facebook-on.png";
   img6.src = "images/icon-printer-on.png";
   img7.src = "images/icon-email-on.png";
   img8.src = "images/arrow-on.gif";
   img9.src = "images/more-info-on.gif";
   img10.src = "images/tool-specs-on.gif";
   img11.src = "images/more-small-on.gif";
   img12.src = "images/more-large-on.gif";
   img13.src = "images/share-arrow-on.gif";
   img14.src = "images/comment-arrow-on.gif";
   img15.src = "images/submit-on.gif";
}