function validate(el) {
	if (el.namefield.value.length < 1) {
		alert("Please insert your full name.");
		el.namefield.select();
		return false;
	}
	if (el.emailfield.value.length < 1) {
		alert("Please insert your email address.");
		el.emailfield.select();
		return false;
	}
	if (el.messagefield.value.length < 1) {
		alert("Please type in your message text.");
		el.messagefield.select();
		return false;
	}
	if (el.subjectfield.value == 'NONE') {
		alert("Please choose your message's subject");
		return false;
	}
	return checkmail(el.emailfield.value);
}
function checkmail(emailadd){
	if(emailCheck(emailadd)==true){
		return true;
	} else {
		alert("This is not a valid email address.");
		return false;
	} 
}