Bug 132096 TOC pane will be closed when hyperlink to internal bookmark
Steps to reproduce: 1.Add a label with TOC "aaa" and bookmark "a" 2.Add a table below the label, and set pagebreakBefore_Always, pagebreakAfter_Always on the table 3.Add a label with TOC "bbb" and bookmark "b" below the table 4.Preview the report in Web Viewer 5.Open the TOC pane and jump to page3 6.Click lable in page3 Expected result: TOC pane won't be closed when jumping to page1 Actual result: TOC pane is closed
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ViewerHTMLActionHandler.java
* 
	 * @param action
	 * @param context
	 * @return the bookmark url
	 */
	protected String buildBookmarkAction( IAction action, Object context )
	{
		if ( action == null || context == null )
			return null;
		StringBuffer link = new StringBuffer( );
		boolean realBookmark = false;
		if ( this.document != null )
		{
			long pageNumber = this.document
					.getPageNumber( action.getBookmark( ) );
			realBookmark = ( pageNumber == this.page && !isEmbeddable );
		}
		String bookmark = action.getBookmark( );
		try
		{
			bookmark = URLEncoder.encode( bookmark,
					ParameterAccessor.UTF_8_ENCODE );
		}
		catch ( UnsupportedEncodingException e )
		{
			
		}
		String baseURL = null;
		if ( context instanceof HTMLRenderContext )
		{