function contactFormSubmit() {
		if ($('contactname').value != '' && $('contactbetreff').value != '' && $('contacttel').value != '') {
			var myRequest = new Request({method: 'post', url: '/modules/mod_contact_callback/ajax-send-contactform.php'});
			myRequest.send({
				 data: {
					
					'contactname': $('contactname').value,
					'betreff': $('contactbetreff').value,
					'tel': $('contacttel').value

					}
			});

			AlertBox.info(lng_mod_contact_callback_thankyou);
			$('mod_contact_callback').set('text', lng_mod_contact_callback_thankyou);

		} else {

			AlertBox.error(lng_mod_contact_callback_error);

		}

	}