public static void canPlayOffline(){
		boolean needUpdate = false;
		File jars[] = new File[4];
        String binPath = new String(Util.getWorkingDirectory() + File.separator + "bin" + File.separator);
        jars[0] = new File(binPath + "minecraft.jar");
        jars[1] = new File(binPath + "lwjgl.jar");
        jars[2] = new File(binPath + "lwjgl_util.jar");
        jars[3] = new File(binPath + "jinput.jar");
        for(int i = 0; i<jars.length;i++){
        	if(!jars[i].exists()){
        		needUpdate = true;
        	}
        }
        if(needUpdate!=true){
        	try {
        		if(LauncherFrame.PwCheckBox.isSelected()){
            		saveUsername();
            		saveMemory();
            	}
            	LauncherFrame.notificationLabel.setText("Avvio il gioco ...");
                LauncherFrame.lf.setVisible(false);
    			GameLauncher.launchGame();

			} catch (Exception e) {
				e.printStackTrace();
			}
        } else {
        	LauncherFrame.notificationLabel.setText("Impossibile avviare il gioco in offline mode");
        }
	}