if (document.images) 
{
   img0 = new Image(); img0.src = "images/space.gif";
   img1 = new Image(); img1.src = "images/link-bar-sch-h1.gif";
   img2 = new Image(); img2.src = "images/link-bar-sch-h2.gif"
   img3 = new Image(); img3.src = "images/link-bar-sch-hb1.gif"
   img4 = new Image(); img4.src = "images/link-bar-sch-hb2.gif"
   img5 = new Image(); img5.src = "images/link-bar-sch-p1.gif"
   img6 = new Image(); img6.src = "images/link-bar-sch-p2.gif"
   img7 = new Image(); img7.src = "images/link-bar-sch-pk1.gif"
   img8 = new Image(); img8.src = "images/link-bar-sch-pk2.gif"
   img9 = new Image(); img9.src = "images/link-bar-sch-t1.gif"
   img10 = new Image(); img10.src = "images/link-bar-sch-t2.gif"
   img11 = new Image(); img11.src = "images/link-bar-sch-c1.gif"
   img12 = new Image(); img12.src = "images/link-bar-sch-c2.gif"
   img13 = new Image(); img13.src = "images/link-bar-sch-s1.gif"
   img14 = new Image(); img14.src = "images/link-bar-sch-s2.gif"
   img15 = new Image(); img15.src = "images/link-bar-sch-ch1.gif"
   img16 = new Image(); img16.src = "images/link-bar-sch-ch2.gif"
}