[jQuery] Trouble updating divs with Ajax

[jQuery] Trouble updating divs with Ajax


I just can't get my head around this one. This Javascript function
gets called everytime user submits a query through a form. It loads a
Google Map, and also tries to update a div with results from Ajax
query. All this is done in the callback-function.
The GMap part works well, it loads some markers on the map, but the
div is updated with the same text everytime, regardless of the Ajax
query response. What am I doing wrong here?
        function loadMap(query) {
            if (GBrowserIsCompatible()) {
                map = new GMap2(document.getElementById("GM"));
                map.addControl(new GSmallMapControl());
                map.addControl(new GMapTypeControl());
                var center = new GLatLng(0, 0);
                map.setCenter(center, 1);
                // Get search results from vtAPI
                $.getJSON("api.php",
                    { q: query },
                    function (json) {
                        // 100 is an error code
                        if (json != "100") {
                            // Create markers for the map
                            markers = json.geonames;
                            for (var i = 0; i < json.totalResultsCount; i++) {
// add some Google Map markers here
                            }
                            // Update div
                            placeHtml = "";
                            placeHtml = placeHtml + "<ul class=\"placemenu\">";
                            for (var i = 0; i < json.totalResultsCount; i++) {
                                var name = markers[i].name;
                                var country = markers[i].countryName;
                                var type = markers[i].fclName;
                                var lat = markers[i].lat;
                                var lng = markers[i].lng;
                                placeHtml = placeHtml + "<li><a href=\"{$install_dir}?
m=text&p=" + name + "&c=" + country + "\">"
                                    + name + ", " + country + "</a> (" + type + ")</li><br />";
                            }
                            placeHtml = placeHtml + "<ul>";
                            // Insert into DOM
                            //$("#placeField").html(placeHtml);
                        } else {
                            alert ("Could not get any locations.");
                        }
                    }
                );
            }
        }