function openDir( form ) { 

	var newIndex = form.fieldname.selectedIndex; 

		cururl = form.fieldname.options[ newIndex ].value; 

		window.location.assign( cururl ); 

} 
function land_belgie() {
	document.getElementById('postcode_be').style.display ='block';
	document.getElementById('postcode_nl').style.display ='none';
	document.getElementById('gemeente').value = '';
	document.getElementById('provincie').value = '';
}
function land_nederland() {
	document.getElementById('postcode_be').style.display ='none';
	document.getElementById('postcode_nl').style.display ='block';
	document.getElementById('gemeente').value = '';
	document.getElementById('provincie').value = '';
}
function postcode(provincie,gemeente) {
	document.getElementById('gemeente').value = gemeente;
	document.getElementById('provincie').value = provincie;
}

function select_form(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
}
function leegmaken(thefield){
	thefield.value = ""
}