/** 
	 * Creates sidebar HTML for indicating concepts which exist
	 * in multiple datasets, and providing a link to add new
	 * mappings.
	 *
	 * Potential refactor candidate!
	*/
	protected function getConceptPanel() {
		global $wgTitle, $wgUser, $wdShowCopyPanel;
		$active = true; # wrong place, but hey
		$dmId = $this->getDefinedMeaningId();
		$dc = wdGetDataSetContext();
		$ow_conceptpanel = wfMsgSc( "concept_panel" );

		$html = "<div class=\"dataset-panel\">"; ;
		$html .= "<table border=\"0\"><tr><th class=\"dataset-panel-heading\">$ow_conceptpanel</th></tr>";
		$sk = $wgUser->getSkin();
		$meanings = getDefinedMeaningDataAssociatedByConcept( $dmId, $dc );
		if ( $meanings ) {
			foreach ( $meanings as $dm ) {
				$dataset = $dm->getDataset();
				$active = ( $dataset->getPrefix() == $dc->getPrefix() );
				$name = $dataset->fetchName();
				$prefix = $dataset->getPrefix();
	
				$class = $active ? 'dataset-panel-active' : 'dataset-panel-inactive';
				$slot = $active ? "$name" : $sk->makeLinkObj( $dm->getTitleObject(), $name, "dataset=$prefix" );
				$html .= "<tr><td class=\"$class\">$slot</td></tr>";
			}
		} else {
				$name = $dc->fetchName();
				$html .= "<tr><td class=\"dataset-panel-active\">$name</td></tr>";
		}
		$cmtitle = Title::newFromText( "Special:ConceptMapping" );
		$titleText = $wgTitle->getPrefixedURL();
		$cmlink = $sk->makeLinkObj( $cmtitle, "<small>" . wfMsgSc( "add_concept_link" ) . "</small>", "set_$dc=$dmId&suppressWarnings=true" );
		$html .= "<tr><td>$cmlink</td></tr>\n";
		if ( $wdShowCopyPanel ) {
			$html .= "<tr><td>" . $this->getCopyPanel() . "<td><tr>";
		}
		$html .= "</table>\n";
		$html .= "</div>\n";
		return $html;
	}
	/** automatically redirects to another page.
	 * make sure you haven't used $wgOut before calling this!
	 */
	protected function autoredir() {
		global $wgOut, $wgRequest;

		$dmid_dirty = $wgRequest->getText( "dmid" );
		$dc1_dirty = $wgRequest->getText( "dc1" );
		$dc2_dirty = $wgRequest->getText( "dc2" );

		# Where should we redirect to?
		$meanings = getDefinedMeaningDataAssociatedByConcept( $dmid_dirty, $dc1_dirty );
		$targetdmm = $meanings[$dc2_dirty];
		$title = $targetdmm->getTitleObject();
		$url = $title->getLocalURL( "dataset=$dc2_dirty&action=edit" );

		# do the redirect
		$wgOut->disable();
		header( 'Location: ' . $url );
		# $wgOut->addHTML("<a href=\"$url\">$url</a>");
	}