// controle email-form
  function isEmail(email){

    var pattern=/(^[\-_\.a-zA-Z0-9]+)@((([0-9]{1,3}\.){3}([0-9]{1,3})((:[0-9])*))|(([a-zA-Z0-9\-]+)(\.[a-zA-Z]{2,})+(\.[a-zA-Z]{2})?((:[0-9])*)))/; 

    if (email.search(pattern) == -1) {return false;}

    else {return true};	

  }

function doSubmit() {

  	var formElem = document.formulier;

	if (formElem.naam.value == '' || formElem.email.value == '' ) {alert("Gelieve uw naam en e-mail in te vullen.")}	

	else if (formElem.email.value && (!isEmail(formElem.email.value))) {alert("Gelieve een geldig email adres in te vullen.")}  

	else {formElem.submit()}

  }
  
function doSearch() {

  	var formElem = document.search;

	if (formElem.zoekstring.value == '' || formElem.zoekstring.value.length < 3   ) {alert("Gelieve minimum 3 karakters in te vullen - Please fill in at least 3 characters.")}	 

	else {formElem.submit()}

  }
  

//-->