Prevent double post (similar to this site)

[Snake]

I'm looking for this hack that prevents double posting just like on this site because it merges the post with the previous one, which is great. Where can I get it? :nervous:

[cinq]

http://www.vbulletin.org/forum/showthread.php?s=&threadid=59916

[Snake]

Thanks, cing. :)

And cing, could you please fill up my hack request? http://www.vbulletin.org/forum/showthread.php?t=81387 It's pretty easy to make man.