how to avoid double URL parsing

Hi, ok, it probably might be a dumb question, but since I'm tied up with other things right now, I hope someone has invented that wheel already :) in the function, that prepares an article body for outputting to the page, I have the following function to make links clickable: $c=ereg_replace("http://(([A-Za-z0-9.\-])+)([a-zA-Z0-9])((/(([a-zA-Z0-9])*))*)(( .([a-zA-Z0-9])+)*)", "<A TARGET=\"_blank\" HREF=\"\\0\">\\0</A>",$c); now, does anyone have an idea how to extend that to handle situations where user has its own HTML links (<a href="http://blah">blah</a>) inside the $c - currently, as you might expect, it screws 'em up. Rgds, Indrek --------------------------------------------------------------------------- Indrek Siitan, CEO eMotion Ltd. [http://www.eMotion.ee] e-mail: tfr@eMotion.ee Narva mnt 31, 10120 Tallinn Estonia cellular: +372 50 17621 phone: +372 6605 890