imgmenu1normal = new Image(); imgmenu1normal.src = "images/menu_01_n.gif";
  imgmenu2normal = new Image(); imgmenu2normal.src = "images/menu_02_n.gif";
  imgmenu3normal = new Image(); imgmenu3normal.src = "images/menu_03_n.gif";
  imgmenu4normal = new Image(); imgmenu4normal.src = "images/menu_04_n.gif";
  imgmenu5normal = new Image(); imgmenu5normal.src = "images/menu_05_n.gif";
  imgmenu6normal = new Image(); imgmenu6normal.src = "images/menu_06_n.gif";
  imgmenu7normal = new Image(); imgmenu7normal.src = "images/menu_07_n.gif";
  imgmenu8normal = new Image(); imgmenu8normal.src = "images/menu_08_n.gif";
  imgmenu9normal = new Image(); imgmenu9normal.src = "images/menu_09_n.gif";
  
  imgmenu1high = new Image(); imgmenu1high.src = "images/menu_01_h.gif";
  imgmenu2high = new Image(); imgmenu2high.src = "images/menu_02_h.gif";
  imgmenu3high = new Image(); imgmenu3high.src = "images/menu_03_h.gif";
  imgmenu4high = new Image(); imgmenu4high.src = "images/menu_04_h.gif";
  imgmenu5high = new Image(); imgmenu5high.src = "images/menu_05_h.gif";
  imgmenu6high = new Image(); imgmenu6high.src = "images/menu_06_h.gif";
  imgmenu7high = new Image(); imgmenu7high.src = "images/menu_07_h.gif";
  imgmenu8high = new Image(); imgmenu8high.src = "images/menu_08_h.gif";
  imgmenu9high = new Image(); imgmenu9high.src = "images/menu_09_h.gif";
  
  
  function switchstate(which,state) {
    document.images[which].src = eval("img"+which+state+".src");
  }