function imgOver(name){
  document.images[name].src="/user/image/" + name + "_h.png";
}
function imgOut(name){
  document.images[name].src="/user/image/" + name + ".png";
}
function setCurMenu(imgName){
  var imgElem = document.getElementsByName(imgName)[0];
  imgElem.onmouseout = null;
}