Someone using my web-page

[Jel]

Doesn't this piece of code in your head tags prevent your page being loaded in a frame?

<script language="Javascript">
var domaincheck=document.location.href
var accepted_ok=false
if (domaincheck.match ("http:\/\/www.yourdomain.com")){
accepted_ok=true
}
if (domaincheck.match ("http:\/\/yourdomain.com")){
accepted_ok=true
}
if (!accepted_ok){
window.location='http://www.yourdomain.com/'
}
</script>

(Sorry I couldn't get it to paste correctly in a code, php, or even quote tag)

That is from TDavid Kalle