<body>
<!--
<script>//这个事可以用的
link = function(string){
var OpenWindow=window.open(string,"new",500,400);
}
</script>-->
<input type="button" value="按一下" onclick=link("http://www.baidu.com")>
<script>
window.open("http://www.baidu.com","new",500,400);
</script>
</body>