Choose your prefix (e.g. mohammad) and press 'Create user'. 
				We then create an ID for you (e.g. mohammad_31241234231);
				<form action='createuser.php' method='GET'>
				<input type=hidden name=op value='add'>
				<input type=text name=prefix maxlength=20>
				<input type=submit value='Create User'>
				</form>