// form validation

	function validate(contact) {

// access form elements via DOM reference
		var uname = contact.contactName.value;
		var email = contact.eaddress.value;
		var subjectLine = contact.subject.value;
		var msg = contact.message.value;

// set up an error variable
		var error = "";

// use if statments to check whether each piece of info is valid
		if(uname == "") {
			error += "Please enter your name.\n";

		}
		if(email == "") {
			error += "Please enter a valid email address.\n";

		}
		if(subjectLine == "") {
			error += "Please enter a Subject title.\n";

		}
		if(msg == "") {
			error += "Please enter a message.\n";

		}

// use a final if statement to check ??
		if(error != "") { // != means not equal to
			alert(error);
			return false;
			}
				else {
					return true;
					}
	}