public void mouseClicked(MouseEvent e){
        // initiate a pop up window for renaming
		try {
		    for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
		        if ("Nimbus".equals(info.getName())) {
		            UIManager.setLookAndFeel(info.getClassName());
		            break;
		        }
		    }
		} catch (UnsupportedLookAndFeelException e1) {
		} catch (ClassNotFoundException e1) {
		} catch (InstantiationException e1) {
		} catch (IllegalAccessException e1) {
		}
				
		SwingUtilities.invokeLater(new Runnable(){
			public void run(){
				System.out.println("creating rename pop up window");
				new renamePopUp(client,currentFile,documentNameField);
			}
		});
    }