请教 一下，我要实现下面的功能怎么写脚本,急急
我页面上是个框加
<frameset rows= "81,* " cols= "* " frameborder= "no " border= "0 " framespacing= "0 ">
<frame src= "Top.aspx " name= "topFrame " scrolling= "No " noresize= "noresize " id= "topFrame " />
<frameset cols= "149,* " frameborder= "no " border= "0 " framespacing= "0 " id= "Left ">
<frame src= "Left.aspx " name= "leftFrame " scrolling= "No " noresize= "noresize " id= "leftFrame " />
<frame src= "Start.aspx " name= "mainFrame " id= "mainFrame " />
</frameset>
</frameset>
<noframes>
</noframes>
我现在在top.asps里面，按点一个按钮，我要得到left.aspx页面一个图片的src，怎么写脚本
[解决办法]
window.parent.frames( "框架名 ").document.getElementById( "图片id ").src=
