public function setLang( $lang ) {
		if ( !IntuitionUtil::nonEmptyStr( $lang ) ) {
			return false;
		}
		$this->currentLanguage = $this->normalizeLang( $lang );
		return true;
	}
public function setLang( $lang ) {
		if ( !IntuitionUtil::nonEmptyStr( $lang ) ) {
			return false;
		}
		$this->currentLanguage = $this->normalizeLang( $lang );
		return true;
	}
public function setLang ( $ lang ) { if ( ! IntuitionUtil :: nonEmptyStr ( $ lang ) ) { return false ; } $ this -> currentLanguage = $ this -> normalizeLang ( $ lang ) ; return true ; }
Set the current language which will be used when requesting messages etc.

@param string $lang Language code. If not a valid string, the setting
will remain unchanged and false is returned.
@return bool
Set the current language which will be used when requesting messages etc .