function checkMail(form)
{
	
	var x = form.email.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		
		if (filter.test(x)){
 			return true;
		}
		else {
			alert('Ongeldige email adres!');
			return false;
		}
}
function checkMailEn(form)
{
	
	var x = form.email.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		
		if (filter.test(x)){
 			return true;
		}
		else {
			alert('Incorrect email address!');
			return false;
		}
}

function validate_InschrijvingSportschool(form) {
  if ( form.name_sportschool.value == "" || form.contact_person.value == "" || form.address_sportschool.value == "" || form.post_address.value == "" || form.tel.value == "" || form.fax.value == "" || form.email.value == "" || form.web.value == "")
  {
    alert( "Niet alle velden zijn gevuld!" );
	return false;
  } 
}
function validate_InschrijvingSportschoolEn(form) {
  if ( form.name_sportschool.value == "" || form.contact_person.value == "" || form.address_sportschool.value == "" || form.post_address.value == "" || form.tel.value == "" || form.fax.value == "" || form.email.value == "" || form.web.value == "")
  {
    alert( "Empty values!!" );
	return false;
  } 
}

function validate_InschrijvingPersoonEn(form) {
  if ( form.name.value == "" || form.address.value == "" || form.email.value == "" || form.tel.value == "")
  {
    alert( "Empty values!!" );
	return false;
  } 
}