window.onload = function () {
var oDiv1 = document.getElementById('div1');//子
var oDiv2 = document.getElementById('div2');//父
oDiv1.onclick = function (ev){
var oEvent = ev || event;
alert("this is div1");
//js阻止事件冒泡
oEvent.cancelBubble = true;
oEvent.stopPropagation();
//js阻止链接默认行为，没有停止冒泡
//oEvent.preventDefault();
//return false;
}
oDiv2.onclick = function (ev){
var oEvent = ev || event;
alert("this is div2");
oEvent.cancelBubble = true;
}
}
