js对超链接添加onclick事件兼容IE及firefox

  <script>
 var comment = $("<a href='http://www.baidu.com' target='_blank'></a>").get(0);

 if(document.all){
  comment.click()
 }else if(document.createEvent){
  var ev = document.createEvent("MouseEvents");
  ev.initEvent('click',true,true);
  comment.dispatchEvent(ev);
 }

</script>