凭空取菜单
 
<script language="JavaScript">
document.onclick = popUp 
  
function popUp() {
newX = window.event.x + document.body.scrollLeft
newY = window.event.y + document.body.scrollTop
menu = document.all.itemopen
  if ( menu.style.display == ""){
    menu.style.display = "none" }
  else {
     menu.style.display = ""}
    menu.style.pixelLeft = newX - 50
    menu.style.pixelTop = newY - 50
}
</script>
凭空取菜单
别以为这里什么都没有,在任意位置单击鼠标左键看看。