Auto Frame Breaker?

As my various websites have gained popularity on the internet, others are linking but at the same time trapping visitors within their frames. There must be a html code or script I can insert which automatically breaks free of the trapping frame. I really hate it that others are commercializing on my sites' hits.

Any ideas??

<script language="javascript">
if (parent.frames.length != 0) {
tpo.location.href = document.location;
}

or something similar.

Success, Ton