private void btnReturn_Click(object sender, EventArgs e)
 {
     if (user.User_type.Equals("Customer"))
     {
         frmCustomerMenu objFrmCustomerMenu = new frmCustomerMenu(user);
         this.Hide();
         objFrmCustomerMenu.Show();
     }
     else
     {
         frmEmployeeMenu objFrmEmployeeMenu = new frmEmployeeMenu(user);
         this.Hide();
         objFrmEmployeeMenu.Show();
     }
 }
 private void back_menu_button_Click(object sender, EventArgs e)
 {
     if (user.User_type.Equals("Customer"))
     {
         frmCustomerMenu frmCustomerMenu = new frmCustomerMenu(user);
         this.Hide();
         frmCustomerMenu.Show();
     }
     else if (user.User_type.Equals("Employee"))
     {
         frmEmployeeMenu frmEmployeeMenu = new frmEmployeeMenu(user);
         this.Hide();
         frmEmployeeMenu.Show();
     }
 }