关于js的跨域的问题 --------------------------------------------------------------------
<script>
function bClick(){
var frames = window.parent.frames;
for (var i = 0; i < frames.length; i++) {
alert(frames[i].document);
}
}
</script>
<iframe id="aaaa" src="http://www.baidu.com"></iframe>
<input type="button" onclick="bClick()" id="b" value="测试"/>
