function checkrequired(form)
{	if (form.email.value=='Email' || form.email.value=='')
	{	alert("Please provide an email address.");
		return false;
	}
	else
	{	window.open("http://www.vacationhook.com/sup_html_xborder/thankyou.html")
		return true;
	}
}
function checkrequired_id(form)
{	if (form.property_id.value=='Email' || form.property_id.value=='')
	{	alert("Please provide a Property ID.");
		return false;
	}
	else
	{	window.open("http://www.vacationhook.com/sup_html_xborder/thankyou.html")
		return true;
	}
}
function checkrequired_p(form)
{	if (form.email.value=='Email' || form.email.value=='')
	{	alert("Please provide an email.");
		return false;
	}
	else
	{	return true;
	}
}