Bug 204245 Blank column on visibility column in excel[0300]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/HTMLTableLM.java
public HTMLTableLM( HTMLLayoutManagerFactory factory )
	{
		super( factory );
	}
	public int getType( )
	{
		return LAYOUT_MANAGER_TABLE;
	}
	boolean isFirstLayout = true;
	public void initialize( HTMLAbstractLM parent, IContent content,
			IReportItemExecutor executor, IContentEmitter emitter )
	{
		tableEmitter = new HTMLTableLayoutNoNestEmitter( emitter, context );
		super.initialize( parent, content, executor, tableEmitter );
		isFirstLayout = true;
	}
	
	protected void repeatHeader( )
	{
		if ( !isFirstLayout )
		{
			ITableContent table = (ITableContent) content;
			if ( table.isHeaderRepeat( ) )
			{
				IBandContent header = table.getHeader( );
				if ( header != null )
				{
					boolean pageBreak = context.allowPageBreak( );
					context.setAllowPageBreak( false );
					IPageBuffer buffer =  context.getPageBufferManager( );