var menu_1_off = new Image();  menu_1_off.src = "images/menu_1.jpg";
var menu_2_off = new Image();  menu_2_off.src = "images/menu_2.jpg";
var menu_3_off = new Image();  menu_3_off.src = "images/menu_3.jpg";
var menu_4_off = new Image();  menu_4_off.src = "images/menu_4.jpg";
var menu_5_off = new Image();  menu_5_off.src = "images/menu_5.jpg";
var menu_1_on = new Image();  menu_1_on.src = "images/menu_1_.jpg";
var menu_2_on = new Image();  menu_2_on.src = "images/menu_2_.jpg";
var menu_3_on = new Image();  menu_3_on.src = "images/menu_3_.jpg";
var menu_4_on = new Image();  menu_4_on.src = "images/menu_4_.jpg";
var menu_5_on = new Image();  menu_5_on.src = "images/menu_5_.jpg";

var nav_1_off = new Image();  nav_1_off.src = "images/nav_1.jpg";
var nav_2_off = new Image();  nav_2_off.src = "images/nav_2.jpg";
var nav_1_on = new Image();  nav_1_on.src = "images/nav_1_.jpg";
var nav_2_on = new Image();  nav_2_on.src = "images/nav_2_.jpg";

function Hilite(src,onoff) {
  eval('document.images["'+src+'"].src = '+src+'_'+onoff+'.src;');
}