var d = document;
var menuVersion = 2;
if (navigator.appName == "Microsoft Internet Explorer") menuVersion = 1;
else if (d.layers) menuVersion = 0;

function GEByID(id) {
  if ( menuVersion == 0 ) return null;
  if ( menuVersion == 1 ) return d.all[id];
  if ( menuVersion == 2 ) return d.getElementById(id);
}

function setMenuBgr1(menu,action) {
  var elem = GEByID("menuitem"+menu);
  if ( elem == null )  return;
  if ( action == 1 ) {
     elem.style.backgroundImage = "url(image/h_1.gif)";
  }
  else {
     elem.style.backgroundImage = "";
  }
}

function setMenuBgr2(menu,action) {
  var elem = GEByID("advitem"+menu);
  if ( elem == null )  return;
  if ( action == 1 ) {
     elem.style.backgroundImage = "url(image/ico"+menu+"_h.gif)";
  }
  else {
     elem.style.backgroundImage = "";
  }
}