regex to add target attribute to html links

[freshwebs]

So I'm an idiot with regular expressions, I can't ever seem to figure them out.  Could someone help me make a regular expression that will find all the anchors in a block of text and add a target="_blank" attribute to them?  It would be [i]greatly[/i] appreciated.

Thanks!!!

[Nicklas]

[code]$string = preg_replace('/(<a href[^<>]+)>/is', '\\1 target="_blank">', $string);[/code]