table统一设置行title鼠标悬浮提示

function title(){
   var iframesum = document.getElementsByTagName('iframe');
   for(var i=1 ;i<iframesum.length;i++){
      var iif = document.getElementsByTagName('iframe')[i].contentWindow.document;
      $(iif).find("td div,th div").mouseenter(function(event){
         var s= $(event.target).text();
         $(event.target).attr("title",s);
      });
   }
}

 

$('#dg').datagrid({
   onLoadSuccess:function(){
      top.title();
   }
});