function htmlUrlChanged() {
var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
var layerName = map.baseLayer.keyid;
function htmlUrlChanged() {
var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
var layerName = map.baseLayer.keyid;