Check for a unique username before creating accoun

Hi All -

I would like to check the username of a person creating an account before they press the join/save key. I think it would be great if there was a ajax call of some sore that checks to see if the username is already used. Maybe even return a modified username if the username already exists. Not sure if this is base functionality or not. Maybe there is a module that I can use?

Thanks in advance.

that is already done by the  username check.

return ( preg_match( '/^[a-zA-Z0-9_-]+$/', $arg0 ) and !file_exists( $dir['root'] . $arg0 ) );

goto profile fields in admin section and see advanced options for that field

 I think what he means is one of those checks that pops up before you try and save the profile to give you suggestions if your name is already taken.

http://www.boonex.com/m/nick-suggestions

There's an ajax join page in the market, but the guy hasn't been around for two years.  There's a chance that the module will work with 7.1, but it would cost you $25 to find out.  It might work.... or it could quickly be $25 down the drain.

Thanks for the posts. I did want to check before the user adds. I checked the nick suggestions module and that looks like it will work. Has anybody else used this module or can comment.

Tanks again

Kasey