public function getDecimalIsHalf( $scale = false )
	{
		if ( ! $this->getIsDecimal() ) {
			return false;
		}

		if ( $scale === false ) $scale = $this->scale( $this->_value );
		if ( $scale < 0 ) $scale = $scale = 0;

		$decimalPart = $this->getDecimalPart();
		if ( $scale >= strlen( $decimalPart ) ) return false;

		// Get the portion of the decimal part affected by the scale value
		$decimalPart = substr( $decimalPart, $scale );
		return strlen( $decimalPart ) == 1 && $decimalPart == "5";
	}