diff --git a/js/app.js b/js/app.js
index 3d7c284..c5c17e4 100644
--- a/js/app.js
+++ b/js/app.js
@@ -14,7 +14,7 @@ function lhash_update(history_step) {
 
     // generate hash
     hash += "mt=" + selectedLayer;
-    hash += "&mz=" + map.getZoom();
+    hash += "&mz=" + roundNumber(map.getZoom(),0);
 
     if(!/^[a-z0-9]{32}$/ig.exec(wvar.query)) {
         hash += "&qm=" + wvar.mode.replace(/ /g, '_');
@@ -22,8 +22,7 @@ function lhash_update(history_step) {
 
     if(follow_vehicle === null || manual_pan) {
         var latlng = map.getCenter();
-        hash += "&mc=" + roundNumber(latlng.lat, 5) +
-                "," + roundNumber(latlng.lng, 5);
+        hash += "&mc=" + roundNumber(latlng.lat, 5) + "," + roundNumber(latlng.lng, 5); 
     }
 
     if(follow_vehicle !== null) {
@@ -108,7 +107,7 @@ function load_hash(no_refresh) {
                 manual_pan = true;
                 v = v.split(',');
                 var latlng = new L.LatLng(v[0], v[1]);
-                map.setView(latlng);
+                map.panTo(latlng, {animate: false});
                 break;
             case "f":
                 refocus = (follow_vehicle != v);
diff --git a/js/tracker.js b/js/tracker.js
index 9f2eb0d..b228eea 100644
--- a/js/tracker.js
+++ b/js/tracker.js
@@ -428,6 +428,27 @@ function load() {
     
     L.control.status({ position: 'bottomright' }).addTo(map);
 
+    L.Control.PeriodControl = L.Control.extend({
+        onAdd: function(map) {
+            var div = L.DomUtil.create('div');
+    
+            div.innerHTML = '<select name="timeperiod" id="timeperiod" style="width:auto !important;height:30px;" onchange="clean_refresh(this.value)"><option value="1 hour">1 hour</option><option value="3 hours" selected="selected">3 hours</option><option value="6 hours">6 hours</option><option value="12 hours">12 hours</option></select>';
+            div.innerHTML.onload = setTimeValue();
+
+            return div;
+        },
+    
+        onRemove: function(map) {
+            // Nothing to do here
+        }
+    });
+
+    L.control.periodcontrol = function(opts) {
+        return new L.Control.PeriodControl(opts);
+    }
+    
+    L.control.periodcontrol({ position: 'topleft' }).addTo(map);
+
     // update current position if we geolocation is available
     if(currentPosition) updateCurrentPosition(currentPosition.lat, currentPosition.lon);
 
@@ -449,15 +470,7 @@ function load() {
         showLaunchSites();
         map.addLayer(launches);
     }
-
-    map.on('moveend', function (e) {
-        lhash_update();
-    });
-
-    map.on('baselayerchange', function (e) {
-        selectedLayer = e.layer.id;
-    });
-
+    
     map.on('zoomend', function() {
         //do check for horizon labels
         if (!offline.get("opt_hide_horizon")) {
@@ -491,42 +504,20 @@ function load() {
         if(!wvar.embeded) manual_pan = true;
     });
 
-    // only start population the map, once its completely loaded
-    var callBack = function() {
+    map.once('move', function() {
         load_hash(null);
 
-        L.Control.PeriodControl = L.Control.extend({
-            onAdd: function(map) {
-                var div = L.DomUtil.create('div');
-        
-                div.innerHTML = '<select name="timeperiod" id="timeperiod" style="width:auto !important;height:30px;" onchange="clean_refresh(this.value)"><option value="1 hour">1 hour</option><option value="3 hours" selected="selected">3 hours</option><option value="6 hours">6 hours</option><option value="12 hours">12 hours</option></select>';
-                div.innerHTML.onload = setTimeValue();
-
-                return div;
-            },
-        
-            onRemove: function(map) {
-                // Nothing to do here
-            }
-        });
-
-        L.control.periodcontrol = function(opts) {
-            return new L.Control.PeriodControl(opts);
-        }
-        
-        L.control.periodcontrol({ position: 'topleft' }).addTo(map);
-
-        map.on('idle', function() {
+        map.on('moveend', function() {
             lhash_update();
-        });
-        map.on('baselayerchange', function() {
+        });  
+
+        map.on('baselayerchange', function(e) {
+            selectedLayer = e.layer.id;
             lhash_update();
         });
-
+        
         startAjax();
-    };
-
-    map.whenReady(callBack);
+    });  
 
     // animate-in the timebox,
     setTimeout(function() {
@@ -2628,12 +2619,6 @@ function refresh() {
     periodical = setTimeout(refresh, 2000);
     return;
   }
-
-  if (ajax_inprogress_old == wvar.query) {
-    if (vehicles.hasOwnProperty(wvar.query)) {
-        return;
-    }
-  }
     
   if (ajax_inprogress_old != wvar.query) {
      document.getElementById("timeperiod").disabled = false;