function VerifyData() {
var valid = 1
if (document.listingInfo.firstname.value == "") {
		valid = 0
	}
if (document.listingInfo.lastname.value == "") {
		valid = 0
	}
if (document.listingInfo.emailaddress.value == "") {
		valid = 0
	}
if (document.listingInfo.resortname.value == "") {
		valid = 0
	}
if (document.listingInfo.bedrooms.value == "") {
		valid = 0
	}
if (document.listingInfo.bathrooms.value == "") {
		valid = 0
	}
if (document.listingInfo.sleeps.value == "") {
		valid = 0
	}
if (document.listingInfo.exchange.value == "") {
		valid = 0
	}
if (document.listingInfo.week.value == "") {
		valid = 0
	}
if (document.listingInfo.originalprice.value == "") {
		valid = 0
	}
if (document.listingInfo.maintenancefees.value == "") {
		valid = 0
	}

// Here we decide whether to submit the form.
	if (!valid) {
		alert("Please complete all the form fields.")
	} else {
		return valid
	}

return valid
}