如何控制内嵌框架中滚动条的位置??
<table width= "100% " border= "0 " cellspacing= "0 " cellpadding= "5 ">
<tr>
<td valign= "top ">
<iframe src= "http://www.177ks.com " name= "mainFrame " width= "100% " height= "500 "> </iframe>
</td>
</tr>
</table>
<script> document.getElementById( "mainFrame ").document.body.scrollTop=200; </script>

上面这样写不行,怎么写呀???

[解决办法]
脚本不可跨域操作