var buttonClicked = false;
function changeButtonText(form)
{
	var button = form.submit;
	if (buttonClicked) return false;
	if (button != null) {
		button.value = "Sending message. Please wait...";
		buttonClicked = true;
		form.submit();
	}
}
function goToContact(form) {
	form.action="/contact_thankyou.php";
	changeButtonText(form);
}