if(document.images){
img1 = new Image();img1.src = "/Files/Navigation/menu_off1.gif";img1Over = new Image();img1Over.src = "/Files/Navigation/menu_on1.gif";
img2 = new Image();img2.src = "/Files/Navigation/menu_off2.gif";img2Over = new Image();img2Over.src = "/Files/Navigation/menu_on2.gif";
img3 = new Image();img3.src = "/Files/Navigation/menu_off3.gif";img3Over = new Image();img3Over.src = "/Files/Navigation/menu_on3.gif";
img4 = new Image();img4.src = "/Files/Navigation/menu_off4.gif";img4Over = new Image();img4Over.src = "/Files/Navigation/menu_on4.gif";

}