+
+<script>
+function change_url () {
+ var url = document.getElementById("afficher_iframe").href;
+ url = url + "&lat=" + map.getCenter().lat;
+ url = url + "&lon=" + map.getCenter().lng;
+ url = url + "&zoom=" + map.getZoom();
+ document.getElementById("afficher_iframe").href=url;
+}
+</script>