private function _writeTitle(PHPExcel_Chart_Title $title = null, $objWriter)
	{
		if (is_null($title)) {
			return;
		}

		$objWriter->startElement('c:title');
			$objWriter->startElement('c:tx');
				$objWriter->startElement('c:rich');

					$objWriter->startElement('a:bodyPr');
					$objWriter->endElement();

					$objWriter->startElement('a:lstStyle');
					$objWriter->endElement();

					$objWriter->startElement('a:p');

						$caption = $title->getCaption();
						if ((is_array($caption)) && (count($caption) > 0))
							$caption = $caption[0];
						$this->getParentWriter()->getWriterPart('stringtable')->writeRichTextForCharts($objWriter, $caption, 'a');

					$objWriter->endElement();
				$objWriter->endElement();
			$objWriter->endElement();

			$layout = $title->getLayout();
			$this->_writeLayout($layout, $objWriter);

			$objWriter->startElement('c:overlay');
				$objWriter->writeAttribute('val', 0);
			$objWriter->endElement();

		$objWriter->endElement();
	}