// form validation: check that each mandatory input has been filled in.
				function validateFields() {
				if (document.request.FirstName.value == "") {
        				alert("Please enter your first name");
					document.request.FirstName.focus();
    				return false;
    				}
				if (document.request.LastName.value == "") {
        				alert("Please enter your last name");
					document.request.LastName.focus();
    				return false;
    				}
				if (document.request.Phone.value == "") {
					alert("Please enter your phone number");
					document.request.Phone.focus();
				return false;
				}
				if (document.request.Email.value == "") {
					alert("Please enter your email address");
					document.request.Email.focus();
				return false;
				}
			
			 return true;
			}