JS-阻止事件冒泡或捕获

if(ele.addEventListener) //符合w3c标准的浏览器
{
  ele.addEventListener("click", function (e){
    e.stopPropagation();
  });
}    
else{// IE8及以下
  ele.attachEvent("onclick",function (e){
    e = e || window.event;
    e.cancleBubble = true;
  });
}