function checkForm() {
	if (document.getElementById("yourname").value == "") {
		alert ("Please enter your name");	
		document.getElementById("yourname").focus();
		return false;
	}
	if (document.getElementById("postcode").value == "") {
		alert ("Please enter your postcode / Zip code");
		document.getElementById("postcode").focus();
		return false;
	}
	if (document.getElementById("email").value == "") {
		alert ("Please enter your email address");
		document.getElementById("email").focus();
		return false;
	}
	if (document.getElementById("heardabout").value == "") {
		alert ("Please enter how you heard about Wide Open Trails");
		document.getElementById("heardabout").focus();
		return false;
	}
	if (document.getElementById("enquiryrelatesto").value == "Please choose...") {
		alert ("Please tell us what your enquiry relates to");
		document.getElementById("enquiryrelatesto").focus();
		return false;
	}
	return true;
}