private void userTypeJComboBoxItemStateChanged(java.awt.event.ItemEvent evt) {//GEN-FIRST:event_userTypeJComboBoxItemStateChanged
        // TODO add your handling code here:
        String selected_user_type = String.valueOf(userTypeJComboBox.getSelectedItem());
        /**
        *If the the user type selected is a new then load the new user form else
        * load the existing user JPanel
        */
        userJPanelNew.removeAll();
        userJPanelNew.setLayout(new BorderLayout());
        if(selected_user_type.equals("Create New")) {                    
            userJPanelNew.add(newCustomerJPanel);            
        }
        else if(selected_user_type.equals("Exisiting Customer")) {  
            existingCustomerJPanel.refreshTable();
            userJPanelNew.add(existingCustomerJPanel);
        }
        userJPanelNew.invalidate();
        userJPanelNew.validate();
        userJPanelNew.repaint();
    }//GEN-LAST:event_userTypeJComboBoxItemStateChanged