Hey guys just curious does anyone have a little hack to prevent external links in users signatures but allow internal links. Any code help would be great. Ive got some idea but it would be awesome if someone could post what they have or suggest.

I suppose you could edit the bbcode functions template to kill them if it's external... Do you still want the link but just not actually linked? for example if you type: http://www.vbhackers.com it will automatically link it but do you just want it to be http://www.vbhackers.com