Bug 169566 Chart Marker Line is above the Series Line
If I'm adding a marker line in a Chart this line is above the Series lines. The series line should above the marker line
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderer.java
{
				ml = (MarkerLine) el.get( j );
				ScriptHandler.callFunction( sh,
						ScriptHandler.BEFORE_DRAW_MARKER_LINE,
						ax,
						ml,
						getRunTimeContext( ).getScriptContext( ) );
				getRunTimeContext( ).notifyStructureChange( IStructureDefinitionListener.BEFORE_DRAW_MARKER_LINE,
						ml );
				deValue = ml.getValue( );
				if ( deValue == null )
				{
					throw new ChartException( ChartEnginePlugin.ID,
							ChartException.RENDERING,
							"exception.marker.line.null.value", 
							new Object[]{
								ml
							},
							Messages.getResourceBundle( getRunTimeContext( ).getULocale( ) ) );
				}
				
				la = LabelImpl.copyInstance( ml.getLabel( ) );
				if ( la.getCaption( ).getValue( ) != null
						&& !IConstants.UNDEFINED_STRING.equals( la.getCaption( )
								.getValue( ) )
						&& la.getCaption( ).getValue( ).length( ) > 0 )
				{
					la.getCaption( )
							.setValue( oaxa[i].getRunTimeContext( )
									.externalizedMessage( la.getCaption( )