private void Button1Click(object sender, EventArgs e)
{
UbietySettings.AuthenticationTypes = MechanismType.Default | MechanismType.Plain;
UbietySettings.Id = new JID(txtUsername.Text);
UbietySettings.Password = txtPassword.Text;
UbietySettings.SSL = btnSSL.Checked;
_xmpp.Connect();
}