stopPropagation不起作用
<html>
<head>
<title>事件流</title>
<meta charset="utf-8"></head>
<body>
<div id="box">
<a href="http://www.baidu.com" id="go" onclick="stopgoto()">go</a>
</div>
<script type="text/javascript">
function stopgoto(event){
alert("hello");
event.stopPropagation();
event.stopDefault();
}
</script>
</body>
</html>