dialog.setFilterExtensions( new String[]{ "*.gif", "*.jpg", "*.png", "*.ico", "*.bmp" } );
			public void widgetSelected( SelectionEvent e )			{				FileDialog dialog = new FileDialog( PlatformUI.getWorkbench( )						.getDisplay( )						.getActiveShell( ) );				dialog.setText( BROWSE_TITLE );				String fileName = dialog.open( );				if ( fileName == null )				{					return;				}				previewImageText.setText( fileName );			}