function cb_search_product(){
	if ($('#search_product').val() != '') {
  	 window.location=$('#search_product').val();
  }
}
function cb_application_area(){
  if ($('#application_area').val() != '') {
     window.location=$('#application_area').val();
  }
}
function showAnswer(id){
	$('.answer').hide();
	$('#answer'+id).show();
	fillSideMenu();
}
function show(id){
	$('#'+id).show();
}
function hide(id){
	$('#'+id).hide();
}
function fillSideMenu(){
  $("#content_menu").height($("#content_primary").height()).css('background-color','dadada');
}
function prepareSubmit(form) {
  if (form.title.value.length==0) return fieldError(form.title, "Please choose a title.");
  if (form.firstname.value.length==0) return fieldError(form.firstname, "Vul uw voornaam in.");
  if (form.lastname.value.length==0) return fieldError(form.lastname, "Vul uw familienaam in.");
  if (form.address.value.length==0) return fieldError(form.address, "Please enter your address.");
  if (form.city.value.length==0) return fieldError(form.city, "Please enter your town.");
  //if (form.fcounty.value.length==0) return fieldError(form.fcounty, "Please enter your county.");
  //if (!validatePostCode(form.postcode, null, false)) return false;
  if (!isEmail(form.email.value)) return fieldError(form.email, "Vul een geldig emailadres in.");
  if (form.message.value.length==0) return fieldError(form.message, "Vul uw boodschap in.");
  return true;
}
function highlightField(field) {
field.focus();
if (field.select) field.select();
}

function fieldError(field, msg) {
  highlightField(field);
  alert(msg);
  return false;
}
function isEmail(str) {
  str = str.toLowerCase();
  var exp = new RegExp("^[a-z0-9\-_]+[\.a-z0-9\-_]+@[a-z0-9\-]+[\.a-z0-9\-]+[^\.]$");
  return exp.test(str);
}