function validateEmail(field){

	if (field == "") return "No email was entered"
		
		else if(!((field.indexOf(".") > 0) &&
					(field.indexOf("@") > 0)) ||
					/[^a-zA-Z0-9.@_0]/.test(field))
		return "The email address is invalid"
		return ""
	
}

function validateSubject(field){

	if ((field == "") || (field == "type your name here")) return "Please enter your first name"
	return ""
	
}

function validateMessage(field){

	if ((field == "") || (field == "type your surname here")) return "Please enter your second name"
	return ""
	
}

function validate(form){


	failEmail = validateEmail(form.email.value);
	failSubject = validateSubject(form.subject.value);
	failMessage = validateMessage(form.message.value);

	if ((failEmail == "") && (failSubject == "") && (failMessage == "")) return true
	else {	
			document.getElementById("emailValidationError").innerHTML=failEmail;
			document.getElementById("subjectValidationError").innerHTML=failSubject;
			document.getElementById("messageValidationError").innerHTML=failMessage;
			return false}
}