function formuliercheck(formulier)
{
	if(formulier.name.value=='')
	{
		formulier.name.focus();
		alert("This form is incomplete. Your name is missing.");
		return false;
	}
	var emailregex = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z]{2,6})+$/;
	if(!formulier.email.value.match(emailregex))
	{
		formulier.email.focus();
		alert("This form is incomplete. Your e-mail address is missing or incorrect.");
		return false;
	}
	formulier.submit();
}