// form validation: check that each mandatory input has been filled in.
				function validateFields() {
				if (document.request.name.value == "") {
        				alert("Please enter your name");
					document.request.name.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;
			}