function SubmitCarSalesEnq(FormRef){ 

	if (FormRef.first_name.value + FormRef.surname.value == ""){
		alert("You must enter your name");
		FormRef.first_name.focus();
	}
	else if (!emailCheck(FormRef.email.value)){
		alert("The email address is not valid.");
		FormRef.email.focus();
	}
	else if (FormRef.email.value != FormRef.email_confirm.value){
		alert("Your email addresses do not match.");
		FormRef.email.focus();
	}
	else if (FormRef.telephone.value == ""){
		alert("Please enter a telephone number");
		FormRef.telephone.focus();
	}
	else if (FormRef.postcode.value == ""){
		alert("Please enter a postcode");
		FormRef.postcode.focus();
	}
	else if (FormRef.make.value == ""){
		alert("Please enter the make of your vehicle");
		FormRef.make.focus();
	}
	else if (FormRef.model.value == ""){
		alert("Please enter the model of your vehicle");
		FormRef.model.focus();
	}
	else if (FormRef.registration_number.value == ""){
		alert("Please enter the registration number of your vehicle");
		FormRef.registration_number.focus();
	}
	else if (FormRef.mileage.value == ""){
		alert("Please enter the mileage of your vehicle");
		FormRef.mileage.focus();
	}
	else{
		FormRef.submit();
	}


/*
	else if ((FormRef.tel.value == ""){
		alert("Please enter a telephone number");
		FormRef.tel.focus();
	}




registration_number
mileage
	*/
	/*Email, Phone number, Postcode, Colour, Mileage, Registration number, Engine size */
}