function Validate(f){
			var valid = true;
			if (f.name.value == ""){
				alert("Please enter your Name.");
				f.name.focus();
				valid = false;
			}
			
			else if (f.email.value == ""){
				alert("Please enter your Email Address.");
				f.email.focus();
				valid = false;
			}
			
			else if (f.vfn.value == "" && f.vin.value == "") {
				alert("Please enter either a Vechile Frame Number or a VIN Number.");
				f.vfn.focus();
				valid = false;
			}
			
			else if (f.enquiry.value == ""){
				alert("Please enter your Enquiry.");
				f.enquiry.focus();
				valid = false;
			}
				
			return valid;
		}