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 e-mail address.");
				f.email.focus();
				valid = false;
			}
				
			return valid;
		}