It works in vb4. He just gave bad directions, that's all.
Put this javascript in your headinclude or footer.
HTML Code:
<script type="text/javascript" src="clientscript/vbulletin_global.js">
function switch_style(F)
{
E = "style";
if(F == "")
{
return;
}
var B=new String(window.location);
var A=new String("");
B=B.split("#");
if(B[1])
{
A="#"+B[1]
}
B=B[0];
if(B.indexOf(E+"id=")!=-1&&is_regexp)
{
var D=new RegExp(E+"id=\\d+&?");
B=B.replace(D,"")
}
if(B.indexOf("?")==-1)
{
B+="?"
}
else
{
lastchar=B.substr(B.length-1);
if(lastchar!="&"&&lastchar!="?")
{
B+="&"
}
}
window.location=B+E+"id="+F+A
}</script>