setPageComplete( previewImageStatus.getSeverity( ) != IStatus.ERROR );
	private void validate( )	{		System.out.println(URIUtil.getDirectory( previewImageText.getText( ) ) + previewImageText.getText( ));				if ( previewImageText.getText( ).trim( ).length( ) == 0 )		{			setErrorMessage( null );			setPageComplete( true );		}		//		else if ( !new File( URIUtil.getDirectory( previewImageText.getText( ) ) + previewImageText.getText( )).exists( ) )//		{//			setErrorMessage( Messages.getFormattedString( IMAGE_ERROR,//					new String[]{//						previewImageText.getText( )//					} ) );//			setPageComplete( false );//			return;//		}		else		{			setErrorMessage( null );			setPageComplete( true );		}	}