如何实现点击顶部链接在左框架和右框架同时显示链接

Question

<frameset rows="180,*" cols="*" frameborder="yes" border="1" framespacing="1">
        <frame src="top.aspx" name="topFrame" scrolling="NO" noresize >
        <frameset rows="*" cols="150,*" framespacing="0" frameborder="yes" border="0">
            <frame src="left.aspx" name="leftFrame" scrolling="NO" noresize>
            <frame src="main.aspx" name="mainFrame">
        </frameset>
</frameset>

Answer 1

top.aspx
<script>
function aaa(url)
{
leftFrame.location = url;
mainFrame.location = url;
}
</script>
<a href="javascript:aaa('http://www.google.com');">go</a>

Answer 2

window.top.frames["leftFrame"].location = url;
window.top.frames["mainFrame"].location = url;