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                  elseif (preg_match("#^(/rename\s+?)#i", $message, $matches) && $db->isAdmin()) {

			$rename = $db->sanitize(trim(str_replace($matches[0], "", $message)));

			$selectuser = $con->query("SELECT * FROM users WHERE username='$rename'");

			$checkuser = $con->query("SELECT * FROM users WHERE username='$matches[0]'");

			if(!$selectuser or !$checkuser)

			{

				echo $con->mysql_error();

			}

			else

			{

				if($selectuser && !$checkuser)

				{

					$con->query("UPDATE users SET Username='$matches[0]' WHERE Username='$rename'");

					$message = ' has changed the user '.$user.'\'s username to '.$matches[0].'.';

				}

				else

				{

					$message = 'The username you have entered is invalid or already taken.';

				}

			}

                 }