function debug($string){
		if ($this->debugLevel > 0) {
			$this->appendDebug($this->getmicrotime().' '.get_class($this).": $string\n");
		}
	}
function debug($string){
		if ($this->debugLevel > 0) {
			$this->appendDebug($this->getmicrotime().' '.get_class($this).": $string\n");
		}
	}
function debug ( $ string ) { if ( $ this -> debugLevel > 0 ) { $ this -> appendDebug ( $ this -> getmicrotime ( ) . ' ' . get_class ( $ this ) . ": $string\n" ) ; } }
adds debug data to the instance debug string with formatting

@param    string $string debug data
@access   private
adds debug data to the instance debug string with formatting