private void NextR1_Click(object sender, System.EventArgs e)
 {
     if (usernameTB.Text != "" && passwordTB1.Text != "" && passwordTB2.Text != "")
     {
         if (passwordTB1.Text == passwordTB2.Text)
         {
             if (SC.Step1(usernameTB.Text, passwordTB1.Text))
             {
                 Registration1.Visible = false;
                 Registration3.Visible = false;
                 Registration4.Visible = false;
                 Registration2.Visible = true;
             }
         }
         else
         {
             MessageBox.Show("Password doesnt match! Try again!");
         }
     }
     else
     {
         MessageBox.Show("Please fill up all the fields!");
     }
 }