var geocoder;

function addAddressToMap(response) {
	if (response || response.Status.code == 200) {
		place = response.Placemark[0];					
		document.forms[0].coordy.value = place.Point.coordinates[1];
		document.forms[0].coordx.value = place.Point.coordinates[0];
  }
}

function showLocation() {
	geocoder = new GClientGeocoder();
	var ville = document.forms[0].ville.value;
	var loclieu = document.forms[0].loclieu.value;
	var adresse = loclieu + ',' + ville;
	geocoder.getLocations(adresse, addAddressToMap);
}