function addDetailsButton(&$buts) {
		$params = array('pntType' => $this->getType()  
			, 'id' => $this->getReqParam('id')
			, 'pntRef' => $this->getFootprintId()
			);
		$hrefLit = $this->getConverter()->toJsLiteral($this->controller->buildUrl($params), "'");
		$buts[]=$this->getButton('Details', "document.location.href=$hrefLit;");
	}