Bug 390669 [Accessibility]Press 'Tab' doesn't focus on the next report item when adding relative period aggregation.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/dialogs/CrosstabBindingDialogHelper.java
}
		}
		return false;
	}
	private String[] getTimeDimensions( )
	{
		List<String> strs = new ArrayList<String>( );
		CrosstabReportItemHandle crosstab = getCrosstabReportItemHandle( );
		CubeHandle cube = crosstab.getCube( );
		if(cube == null)
		{
			return new String[0];
		}
		List list = cube.getPropertyHandle( ICubeModel.DIMENSIONS_PROP )
				.getContents( );
		for ( int i = 0; i < list.size( ); i++ )
		{
			DimensionHandle dimension = (DimensionHandle) list.get( i );
			if ( isAvaliableTimeDimension( dimension ) )
			{
				
				
				
				strs.add( dimension.getName( ) );
			}
		}
		return strs.toArray( new String[strs.size( )] );
	}
	private void initAggOn( )
	{