function checkForm(that) {
	var error = '';
	if (that.name.value == '') {
		error += 'Please be sure to fill out your name';
	}
	if (that.email.value == '') {
		if (error) {
			error += " and e-mail address";
		} else {
			error += 'Please be sure to include your e-mail address';
		}
	} else {
		 if (!isValidEmail(that.Email.value)) {
			if (error) {
				error += "\n";
			}
			error += "Please make sure your e-mail address is properly formatted";
		}
	}
	if (error) {
		alert (error);
		return false;
	} else {
		return true;
	}
}

function isValidEmail(address) {
	if (address != '' && address.search) {
		if (address.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1) {
			return true;
		} else {
			return false;
		}
	} else {
		return true;
	}
}