public function IsNumeric()
	{
		return (
			$this->FieldType == FM_TYPE_DECIMAL
			|| $this->FieldType == FM_TYPE_INT
			|| $this->FieldType == FM_TYPE_SMALLINT
			|| $this->FieldType == FM_TYPE_TINYINT
			|| $this->FieldType == FM_TYPE_MEDIUMINT
			|| $this->FieldType == FM_TYPE_BIGINT
			|| $this->FieldType == FM_TYPE_FLOAT
		);
	}