/**
* Set the amount of bits corresponding to the type(s) of output messages
* displayed. By default all but debug messages will be displayed. This can be
* changed in the configuration file.
* 0 Critical events (will always display)
* 1 Notices
* 2 Debug messages
*/
public static function set_outputbits($outputbits)
{
self::$outputbits = $outputbits;
}