Bug 135252 [Regression]Focus will lost when switching to script view
Steps to reproduce: 1.Select a data set 2.Click "Script" tab Expected result: Script view for the data set shows up Actual result: The focus on data set lost
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
{
			page.initialize( this );
			page.init( createSite( page ), getEditorInput( ) );
		}
		catch ( Exception e )
		{
			
			throw new PartInitException( e.getMessage( ) );
		}
		return index;
	}
	/**
	 * Remove report editor page.
	 * 
	 * @param id
	 *            the page id.
	 */
	public void removePage( String id )
	{
		IFormPage page = findPage( id );
		if ( page != null )
		{
			removePage( page.getIndex( ) );
		}
	}
	/**
	 * Remove all report editor page.
	 */
	public void removeAllPages( )
	{