<!--图片防止右键查看-->
<script language="JavaScript">  
function shieldOncontextmenu() {
    var  target = getEvent().target || getEvent().srcElement; // 获得事件源
    if(target.src){
         return false;
    }
}
function getEvent(e) {
  var ev = e || window.event;
  if (!ev) {
      var c = this.getEvent.caller;
      while (c) {
          ev = c.arguments[0];
          if (ev && Event == ev.constructor) {
              break;
          }
          c = c.caller;
      }
  }
  return ev;
}
document.oncontextmenu=shieldOncontextmenu

</script>