Fullscreen

Make what full screen?

You will need to know javascript so you can put it in an HTML snippet to do that. Why do you want to force your site to full screen. Most users don't like having their browser window resized for them. It's intruding on their space. However, do a search in this forum for posts by Cyclosaurus and Wyodor for +full screen+ or resize or similar search terms. I believe he or Wyodor posted code that would do that.

Paste this in a HTML Snippet :

<script language="JavaScript">
<!--
top.window.resizeTo(screen.width,screen.height);
-->
</script>