This php regexp works in php, but can't get it to work in javascript?

[shortysbest]

preg_match('`((http)+(s)?:(//)|(www\.))((\w|\.|\-|_)+)(/)?(\S+)?`i', $string, $found_url)

[TeNDoLLA]

What have you tried in JS then? Also this is probably wrong section if you need JS help.

[shortysbest]

Actually, oddly enough I just tried it in javascript again, and it worked this time 

(Only posted here because the javascript thread doesn't get much traffic, and figured anyone good with regexp could do both)