Bug 201042 [Accessibility]Chart scritp should not add by auto when click the down in keyboard[17]
Description: Chart scritp should not add by auto when click the down in keyboard[0704] Step: 1. New a chart and switch to script view. 2. Let the point on the script function selection. 3. Click the down on keyboard. Actual result: A function will add by auto. Expected result: Customer can not select the function under the second function by keyboard, and it should not be added by auto.
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/internal/ui/editors/script/JSEditor.java
return outlinePage;
		}
		
		if ( adapter == IPropertySheetPage.class )
		{
			ReportPropertySheetPage sheetPage = new ReportPropertySheetPage( );
			return sheetPage;
		}
		if ( adapter == DataViewPage.class )
		{
			DataViewTreeViewerPage page = new DataViewTreeViewerPage( SessionHandleAdapter.getInstance( )
					.getReportDesignHandle( ) );
			return page;
		}
		if ( adapter == AttributeViewPage.class )
		{
			AttributeViewPage page = new AttributeViewPage( );
			return page;
		}
		return super.getAdapter( adapter );
	}
	/**
	 * 
	 * initEditorLayout - initialize the UI components of the editor
	 * 
	 */
	private Composite initEditorLayout( Composite parent )
	{
		
		Composite mainPane = new Composite( parent, SWT.NONE );