兼容各大浏览器的JavaScript阻止事件冒泡代码

function stopEvent(event){ //阻止冒泡事件

   //取消事件冒泡

   var e=arguments.callee.caller.arguments[0]||event; //若省略此句，下面的e改为event，IE运行可以，但是其他浏览器就不兼容

   if (e && e.stopPropagation) {

     // this code is for Mozilla and Opera

     e.stopPropagation();

   } else if (window.event) {

     // this code is for IE

      window.event.cancelBubble = true;

   }

 }



$(".dropdown li").on('click',function(e){
    stopEvent(e);
});