我想做一个类似CSDN论坛一样分左右的页面，点一下中间的竖线左边能缩进，这个怎么做？

[victorxin]

RT

[terrypeng]

<script language="javascript">
function f_ChangeWidth(){
var oChange = event.srcElement;
if(oChange.src.search("JTL_SEL.gif") != -1){
oChange.src = 'images/JTR.gif';
oChange.title ='右栏还原';
lefttd.style.display ="none";
righttd.style.width ="100%";
}else{
oChange.title = '右栏最大化';
lefttd.style.display ="inline";
lefttd.style.width ="25%";
righttd.style.width ="75%";
oChange.src = 'images/JTL_SEL.gif';
}
}
function SelImage()
{
var oChange = event.srcElement;
if(oChange.src.search("JTL.gif") != -1)
oChange.src = 'images/JTL_SEL.gif';
else
oChange.src = 'images/JTR_SEL.gif';
}
function UnSelImage()
{
var oChange = event.srcElement;
if(oChange.src.search("JTL_SEL.gif") != -1)
oChange.src='images/JTL.gif';
else
oChange.src='images/JTR.gif';
}
</script>

[shuanyu]

用框架，用iframe，用表格都行

<script language="JavaScript">
defcol='';
function expandf(){
if(document.body.cols!="10,*")
document.body.cols="10,*";
else
document.body.cols=defcol
}
</script>