public void actionPerformed(ActionEvent e) {
			try {
				Object source = e.getSource();

				if (source == menuItemFileOpen) {
					fileOpen();
				} 
				else if (source == menuItemHelp) {
					help();
				}
				else if (source == buttonActivate) {
					initWorkflow();
					activateWorkflow();
				}
				else if (source == buttonAnalysis) {
					analyzeText();
				}
				else if (source == buttonReset) {
					reset();
				} else if (source == radioMultiThread) {
					multiThreadMode = true;
				} else if (source == radioSingleThread) {
					multiThreadMode = false;
				}
			} catch (Exception e1) {
				e1.printStackTrace();
			}
		}