/**
 * @author richard
 */

//Auto empty if field gets focus
function doEmpty(field) {
	if (field.value == "Nieuwsbrief inschrijving")
	  field.value = "";
	if (field.value == "Typ hier je zoekterm") 
     field.value = "";
}

//Refill if there isn't filled in any value
//Use this with the onblur event
function doFill(field) {
	if (field.id == "nieuwsbriefInput" && field.value == '') {
		field.value = "Nieuwsbrief inschrijving";
	}
}

//Check function before submit
function doSubmit() {
	var field = document.getElementById('nieuwsbriefInput').value;
	if (field != null && field != 'Nieuwsbrief inschrijving') {
   	return true;
   }
   else {
   	alert('Geef eerst uw emailadres op');
   	return false;
   }
}