diff --git a/admin.php b/admin.php
index ce64b2da..becf6ca1 100644
--- a/admin.php
+++ b/admin.php
@@ -28,14 +28,14 @@
 			<div class="loading-indicator">
 				<img alt="VelObs" src="resources/images/velobs.jpg" width="99" height="64" style="margin-right:8px;float:left;vertical-align:top;"/><?php echo INCLUDE_CODE_HTML_LOADING ?><br /><span id="loading-msg">Loading styles and images ...</span>
 			</div>
-			<link rel="stylesheet" type="text/css" href="resources/css/icon.css?v1.6.2" />
+			<link rel="stylesheet" type="text/css" href="resources/css/icon.css?v1.7.0" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/ext-3.4.0/resources/css/ext-all.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/ext-3.4.0/resources/css/xtheme-gray.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/GeoExt/resources/css/geoext-all.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/GeoExt/resources/css/gxtheme-gray.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/GeoExt/resources/css/popup.css" />
-			<link rel="stylesheet" type="text/css" href="resources/css/admin.css?v1.6.2" />
-			<link rel="stylesheet" type="text/css" href="resources/css/iconmarker.css?v1.6.2" />
+			<link rel="stylesheet" type="text/css" href="resources/css/admin.css?v1.7.0" />
+			<link rel="stylesheet" type="text/css" href="resources/css/iconmarker.css?v1.7.0" />
 			<link rel="stylesheet" type="text/css" href="resources/css/fileuploadfield.css" />
 
 			<!--<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading Google Maps API...';</script> 
@@ -51,9 +51,9 @@
 	
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading language...';</script>
 			<script type="text/javascript" src="lib/js/framework/ext-3.4.0/src/locale/ext-lang-<?php echo $_SESSION['extension_language']; ?>.js"></script>
-			<script type="text/javascript" src="lib/js/translation_<?php echo $_SESSION['extension_language']; ?>.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/key.js.template?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/key.js?v1.6.2"></script>
+			<script type="text/javascript" src="lib/js/translation_<?php echo $_SESSION['extension_language']; ?>.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/key.js.template?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/key.js?v1.7.0"></script>
 			
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading extensions...';</script>
 			<script type="text/javascript" src="lib/js/framework/ux/GeoNamesSearchCombo.js"></script>
@@ -67,63 +67,63 @@
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading geometry...';</script>
 			
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading application...';</script>
-			<script type="text/javascript" src="lib/js/common.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poiCommon.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/userUpdate.js?v1.6.2"></script>
+			<script type="text/javascript" src="lib/js/common.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poiCommon.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/userUpdate.js?v1.7.0"></script>
 		<?php 
 		switch ($_SESSION['type']) {
 			case '1':
 ?>
 
-			<script type="text/javascript" src="lib/js/admin/modeemploi1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/icon1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/config1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/status1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/users1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/priorite1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/commune1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/pole1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/quartier1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/basket.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poi1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/subcategory1.js?v1.6.2"></script>			
-			<script type="text/javascript" src="lib/js/admin/category1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/users_link_pole1.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/main1.js?v1.6.2"></script>
+			<script type="text/javascript" src="lib/js/admin/modeemploi1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/icon1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/config1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/status1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/users1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/priorite1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/commune1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/pole1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/quartier1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/basket.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poi1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/subcategory1.js?v1.7.0"></script>			
+			<script type="text/javascript" src="lib/js/admin/category1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/users_link_pole1.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/main1.js?v1.7.0"></script>
 	 
 <?php			
 				break;
 			case '2':
 ?>
-			<script type="text/javascript" src="lib/js/admin/modeemploi2.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poi2.js?v1.6.2"></script>
+			<script type="text/javascript" src="lib/js/admin/modeemploi2.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poi2.js?v1.7.0"></script>
 			
-			<script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/main2.js?v1.6.2"></script>
+			<script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/main2.js?v1.7.0"></script>
 <?php
 				break;
 			case '3':
 ?>
-			<script type="text/javascript" src="lib/js/admin/modeemploi3.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poi3.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/main3.js?v1.6.2"></script>
+			<script type="text/javascript" src="lib/js/admin/modeemploi3.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poi3.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/main3.js?v1.7.0"></script>
 <?php
 				break;
 		    case '4':
 ?>
-            <script type="text/javascript" src="lib/js/admin/modeemploi4.js?v1.6.2"></script>
-            <script type="text/javascript" src="lib/js/admin/commune1.js?v1.6.2"></script>
-            <script type="text/javascript" src="lib/js/admin/pole1.js?v1.6.2"></script>
-            <script type="text/javascript" src="lib/js/admin/basket.js?v1.6.2"></script>
-            <script type="text/javascript" src="lib/js/admin/poi4.js?v1.6.2"></script>
-            <script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.6.2"></script>
-			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.6.2"></script>
-            <script type="text/javascript" src="lib/js/admin/main4.js?v1.6.2"></script>
+            <script type="text/javascript" src="lib/js/admin/modeemploi4.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/admin/commune1.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/admin/pole1.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/admin/basket.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/admin/poi4.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/admin/mapadmin.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/admin/poiCommonBeforeRender.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/admin/main4.js?v1.7.0"></script>
 
 <?php
 		        break;
diff --git a/index.php b/index.php
index 27c0b0a6..f5c9861e 100644
--- a/index.php
+++ b/index.php
@@ -6,7 +6,7 @@
 <html>
 	<head>
 		<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
-		<title><?php echo PAGE_TITLE ?> v1.6.3</title>
+		<title><?php echo PAGE_TITLE ?> v1.7.0</title>
 		<link rel="shortcut icon" type="image/png" href="resources/favicon/favicon.ico" />
 	</head>
 	<body onunload="setCookie()">
@@ -15,14 +15,14 @@
 			<div class="loading-indicator">
                 <img alt="VelObs" src="resources/images/velobs.jpg" width="99" height="64" style="margin-right:8px;float:left;vertical-align:top;"/><?php echo INCLUDE_CODE_HTML_LOADING ?><br /><span id="loading-msg">Loading styles and images ...</span>
 			</div>
-			<link rel="stylesheet" type="text/css" href="resources/css/icon.css?v1.6.3" />
+			<link rel="stylesheet" type="text/css" href="resources/css/icon.css?v1.7.0" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/ext-3.4.0/resources/css/ext-all.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/ext-3.4.0/resources/css/xtheme-gray.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/GeoExt/resources/css/geoext-all.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/GeoExt/resources/css/gxtheme-gray.css" />
 			<link rel="stylesheet" type="text/css" href="lib/js/framework/GeoExt/resources/css/popup.css" />
-			<link rel="stylesheet" type="text/css" href="resources/css/public.css?v1.6.3" />
-			<link rel="stylesheet" type="text/css" href="resources/css/iconmarker.css?v1.6.3" />
+			<link rel="stylesheet" type="text/css" href="resources/css/public.css?v1.7.0" />
+			<link rel="stylesheet" type="text/css" href="resources/css/iconmarker.css?v1.7.0" />
 			<link rel="stylesheet" type="text/css" href="resources/css/fileuploadfield.css" />
 	
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading ExtJS...';</script>
@@ -35,27 +35,27 @@
 	
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading language...';</script>
 			<script type="text/javascript" src="lib/js/framework/ext-3.4.0/src/locale/ext-lang-fr.js"></script>
-			<script type="text/javascript" src="lib/js/translation_fr.js?v1.6.3"></script>
-            <script type="text/javascript" src="lib/js/key.js.template?v1.6.3"></script>
-            <script type="text/javascript" src="lib/js/key.js?v1.6.3"></script>
+			<script type="text/javascript" src="lib/js/translation_fr.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/key.js.template?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/key.js?v1.7.0"></script>
 			
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading extensions...';</script>
-			<script type="text/javascript" src="lib/js/framework/ux/GeoNamesSearchCombo.js?v1.6.3"></script>
-            <script type="text/javascript" src="lib/js/public/poidisplaystatus.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/public/baselayerlist.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/framework/ux/FileUploadField.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/framework/ux/IconCombo.js?v1.6.3"></script>
+			<script type="text/javascript" src="lib/js/framework/ux/GeoNamesSearchCombo.js?v1.7.0"></script>
+            <script type="text/javascript" src="lib/js/public/poidisplaystatus.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/public/baselayerlist.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/framework/ux/FileUploadField.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/framework/ux/IconCombo.js?v1.7.0"></script>
 	
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading geometry...';</script>
 			
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Loading application...';</script>
 			<script type="text/javascript" src="lib/js/public/credits.js"></script>
-			<script type="text/javascript" src="lib/js/framework/AnimatedCluster.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/common.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/public/proposition.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/public/export.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/public/map.js?v1.6.3"></script>
-			<script type="text/javascript" src="lib/js/public/main.js?v1.6.3"></script>
+			<script type="text/javascript" src="lib/js/framework/AnimatedCluster.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/common.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/public/proposition.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/public/export.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/public/map.js?v1.7.0"></script>
+			<script type="text/javascript" src="lib/js/public/main.js?v1.7.0"></script>
 	 
 			<script type="text/javascript">document.getElementById('loading-msg').innerHTML = 'Initialization...';</script> 
 		</div>
diff --git a/lib/js/admin/mapadmin.js b/lib/js/admin/mapadmin.js
index b4a40203..f9c1313e 100644
--- a/lib/js/admin/mapadmin.js
+++ b/lib/js/admin/mapadmin.js
@@ -37,6 +37,8 @@ var navigation = new OpenLayers.Control.Navigation({
 		return;
 	}
 });
+var projection1 = new OpenLayers.Projection("EPSG:900913");
+var projection2 = new OpenLayers.Projection("EPSG:4326");
 var optionsAdminMap = {
 		controls: [
 		           new OpenLayers.Control.PanZoom(), 
@@ -44,8 +46,8 @@ var optionsAdminMap = {
 		           new OpenLayers.Control.ScaleLine({geodesic: true}),
 		           controlZoomBox
 		           ],
-		           projection: new OpenLayers.Projection("EPSG:900913"),
-		           displayProjection: new OpenLayers.Projection("EPSG:4326"),
+		           projection: projection1,
+		           displayProjection: projection2,
 		           units: "m",
 		           numZoomLevels: 18,
 		           maxResolution: 156543.0339,
@@ -63,29 +65,39 @@ adminMap.addControl(new OpenLayers.Control.Attribution());
 
 
 function clearMarker() {
-	vectorsAdminMap.removeAllFeatures();
-	vectorsAdminMap.destroyFeatures();
-	vectorsAdminMap.addFeatures([]);
-	vectorsAdminMap.strategies[0].clearCache();
+	console.log("in clearMarker");
+	//features = [];
+	//featuresId = [];
+	//vectorsAdminMap.removeAllFeatures();
+	//vectorsAdminMap.destroyFeatures();
+	//vectorsAdminMap.addFeatures([]);
+	//vectorsAdminMap.strategies[0].clearCache();
 }
 
-function getMarker() {
-	clearMarker();
-	console.info('Dans mapadmin1.js getMarker '+tabcheckchild);
-	if (tabcheckchild != '') {
-		document.getElementById("loader").style.display = "block";
-		var uri = 'lib/php/admin/getMarker.php?listType='+tabcheckchild+'&dateLastModif='+dateLastModif+'&priority='+comboPrioritePOIMapItemMenu.getValue()+'&status='+StatusPOIFieldMapItemMenu.getValue()+'&displayObservationsToBeAnalyzedByComCom='+displayObservationsToBeAnalyzedByComCom+'&displayObservationsToBeAnalyzedByPole='+displayObservationsToBeAnalyzedByPole+'&commentToModerate='+displayObservationsWithCommentToModerate+'&nbSupportMinimum='+nbSupportMinimum;
-		OpenLayers.loadURL(uri, '', this, displayMarker);
-	}
-}
 
+var features = [];
+var featuresId = [];
+function displayNumberOfTotalRecords(response){
+	console.log("entering displayNumberOfTotalRecords");
+	document.getElementById("loader").style.display = "none";
+	var json = eval('(' + response.responseText + ')');
+	showTooltipNumberOfObservations(json.total_number_of_observations);
+}
 function displayMarker(response) {
 	console.info('Dans mapadmin1.js displayMarker');
 	document.getElementById("loader").style.display = "none";
-	var features = [];
+	//var features = [];
 	var json = eval('(' + response.responseText + ')');
 	if (json.markers != null) {
 		for (var i=0; i<json.markers.length; i++) {
+			var id = json.markers[i].id;
+			if (!featuresId.includes(id)){
+				featuresId.push(id);
+			}else{
+				//console.log("The feature " + id + " is still loaded");
+					continue;
+			}
+			console.log("Building feature " + id);
 			var lonlat = new OpenLayers.LonLat(json.markers[i].lon, json.markers[i].lat).transform(new OpenLayers.Projection("EPSG:4326"), adminMap.getProjectionObject());
 
 			var point = new OpenLayers.Geometry.Point(lonlat.lon,lonlat.lat);
@@ -134,10 +146,10 @@ function displayMarker(response) {
 			features.push(feat);
 		}
 		vectorsAdminMap.addFeatures(features);
-		showTooltipNumberOfObservations(features.length);
-		features = [];
-	}else{
-		showTooltipNumberOfObservations(0);
+//		showTooltipNumberOfObservations(features.length);
+//		features = [];
+//	}else{
+//		showTooltipNumberOfObservations(0);
 	}
 }
 
@@ -313,7 +325,7 @@ function createPopup(feature) {
 
 function refreshTreeNode() {
 	treePanel.getRootNode().reload();
-	clearMarker();
+	//clearMarker();
 }
 
 var buttonRefreshTree = new Ext.Button({
@@ -483,6 +495,8 @@ function getCheckChild(tab) {
 	console.debug("getCheckChild treeLoaderFinished = " + treeLoaderFinished );
 	if (previousTreeNodesChecked!=currentTreeNodesChecked && treeLoaderFinished == 1){
 		previousTreeNodesChecked = treePanel.getChecked('id').join();
+		console.debug("in getCheckChild, before clearMarker and getMarker" );
+		clearMarker();
 		getMarker();
 	}
 	console.debug("getCheckChild fin");
@@ -587,18 +601,21 @@ var mapAdminTabPanel = new Ext.Panel({
 		}
 	}
 });
-
+var setDefaultCenterMapDone = 0;
 function setDefaultCenterMap(response) {
 	var json = eval('('+response.responseText+')');
 	var long  = getCookie("mapx");
 	var lat  = getCookie("mapy");
 	var zoom  = getCookie("mapz");
 	console.debug("Cookie "+document.cookie);
+	setDefaultCenterMapDone = 1;
 	//si les infos de longitude, latitude et zoom sont dans les cookies, on les utilise, sinon on récupère les infos de la base de données
 	if(long != null && long != 0){
 		console.debug("Configmap from cookies");
 		adminMap.setCenter(new OpenLayers.LonLat(long,lat), zoom);
 		adminMap.setBaseLayer(adminMap.layers[0]);
+		console.debug("in setDefaultCenterMap, before clearMarker and getMarker" );
+		getMarker();
 	}else if (json.configmap != null) {
 		console.debug("Configmap from database");
 		adminMap.setCenter(new OpenLayers.LonLat(json.configmap[0].lon, json.configmap[0].lat).transform(new OpenLayers.Projection("EPSG:4326"), adminMap.getProjectionObject()), json.configmap[0].zoom);
@@ -641,3 +658,21 @@ function setCookie() {
 var selectControl = new OpenLayers.Control.SelectFeature([vectorsAdminMap]);
 adminMap.addControl(selectControl);
 selectControl.activate();
+adminMap.events.register("moveend", adminMap, function() {
+	console.debug("in moveend, before getMarker" );
+	getMarker();
+});
+function getMarker() {
+	//clearMarker();
+	console.info('Dans mapadmin1.js getMarker '+tabcheckchild);
+	if (tabcheckchild != ''  && setDefaultCenterMapDone == 1) {
+		document.getElementById("loader").style.display = "block";
+		var bounds = adminMap.getExtent().transform(projection1, projection2).toGeometry().toString();
+		var alreadyLoadedObservations = featuresId.join();
+		var uri = 'lib/php/admin/getMarker.php?listType='+tabcheckchild+'&dateLastModif='+dateLastModif+'&priority='+comboPrioritePOIMapItemMenu.getValue()+'&status='+StatusPOIFieldMapItemMenu.getValue()+'&displayObservationsToBeAnalyzedByComCom='+displayObservationsToBeAnalyzedByComCom+'&displayObservationsToBeAnalyzedByPole='+displayObservationsToBeAnalyzedByPole+'&commentToModerate='+displayObservationsWithCommentToModerate+'&nbSupportMinimum='+nbSupportMinimum+'&bounds=' + bounds+'&alreadyLoadedObservations='+alreadyLoadedObservations ;
+		OpenLayers.loadURL(uri, '', this, displayMarker);
+		var uriCount = 'lib/php/public/getMarker.php?listType='+tabcheckchild+'&dateLastModif='+dateLastModif+'&status='+StatusPOIFieldMapItemMenu.getValue()+'&priorite='+comboPrioritePOIMapItemMenu.getValue()+'&nbSupportMinimum='+nbSupportMinimum+'&getCount=1' ;
+		OpenLayers.loadURL(uriCount, '', this, displayNumberOfTotalRecords);
+	}
+}
+
diff --git a/lib/js/common.js b/lib/js/common.js
index cae7c60b..9b666719 100644
--- a/lib/js/common.js
+++ b/lib/js/common.js
@@ -14,6 +14,7 @@ var dateFieldModifiedSince = new Ext.form.DateField(
         	console.log('%o',value);
         	dateLastModif = date.getFullYear()+'-'+(date.getMonth()+1)+'-'+date.getDate();
         	console.log(dateLastModif);
+        	clearMarker();
         	getMarker();
         }
     }
@@ -25,6 +26,7 @@ var CancelDateFilterItem = new Ext.Button({
 	handler: function() {
 	  dateFieldModifiedSince.reset();
 	  dateLastModif ='1900-01-01';
+	  clearMarker();
 		getMarker();
 	}
 });
@@ -38,6 +40,7 @@ var numberFieldNbSupport = new Ext.form.NumberField(
 		        blur: function(field) {
 		        	console.log('nbSupportMinimum = %o',field.getValue());
 		        	nbSupportMinimum = field.getValue();
+		        	clearMarker();
 		        	getMarker();
 		        },specialkey: function (field, e) {
 		            if (field.getValue() != 'null') {
@@ -45,6 +48,7 @@ var numberFieldNbSupport = new Ext.form.NumberField(
 		                	nbSupportMinimum = field.getValue();
 		                	console.log('nbSupportMinimum = %o',field.getValue());
 		                	console.log(e.getKey());
+		                	clearMarker();
 		                	getMarker();
 		                }
 		            }
@@ -61,6 +65,7 @@ var CancelVoteFilterItem = new Ext.Button({
 	handler: function() {
 		numberFieldNbSupport.reset();
 		nbSupportMinimum = 0;
+		clearMarker();
 		getMarker();
 	}
 });
@@ -72,6 +77,7 @@ var searchObservationField = new Ext.form.NumberField({
 	width:150,
 	listeners: {
         blur: function(field) {
+        	
         	getMarkerByID(field.getValue());
         },specialkey: function (field, e) {
             if (field.getValue() != 'null') {
@@ -334,6 +340,7 @@ var prioritePOIList = new Ext.data.JsonStore({
 	});
 	comboPrioritePOIMapItemMenu.on('select', function() {
 		   console.log("Appel getMarker avec priorite = "+comboPrioritePOIMapItemMenu.getValue());
+		   clearMarker();
 			getMarker();
 		});
 	comboPrioritePOIMapItemMenu.on('afterrender', function(){
@@ -345,6 +352,7 @@ var prioritePOIList = new Ext.data.JsonStore({
       	text:'',
       	handler: function() {
       		comboPrioritePOIMapItemMenu.reset();
+      		clearMarker();
       		getMarker();
       	}
 
@@ -378,6 +386,7 @@ var prioritePOIList = new Ext.data.JsonStore({
 		});  
 	StatusPOIFieldMapItemMenu.on('select', function() {
 		   console.log("Appel getMarker avec status = "+StatusPOIFieldMapItemMenu.getValue());
+		   clearMarker();
 			getMarker();
 		});
 	var CancelStatusFilterItem = new Ext.Button({
@@ -386,6 +395,7 @@ var prioritePOIList = new Ext.data.JsonStore({
 		   text:'',
 		   handler: function() {
 		      StatusPOIFieldMapItemMenu.reset();
+		      clearMarker();
 			  	getMarker();
 		   }
 	});
diff --git a/lib/js/public/map.js b/lib/js/public/map.js
index 5b15371a..f68d6207 100644
--- a/lib/js/public/map.js
+++ b/lib/js/public/map.js
@@ -16,7 +16,10 @@ function osm_getTileURL(bounds) {
 	var y = Math.round((this.maxExtent.top - bounds.top) / (res * this.tileSize.h));
 	var z = this.map.getZoom();
 	var limit = Math.pow(2, z);
-
+console.log("x = " + x);
+console.log("y = " + y);
+console.log("z = " + z);
+console.log("limit = " + limit);
 	if (y < 0 || y >= limit) {
 		return OpenLayers.Util.getImagesLocation() + "404.png";
 	} else {
@@ -37,6 +40,8 @@ var navigation = new OpenLayers.Control.Navigation({
 		return;
 	}
 });
+var projection1 = new OpenLayers.Projection("EPSG:900913");
+var projection2 = new OpenLayers.Projection("EPSG:4326");
 var optionsMap = {
 		controls: [
 		           new OpenLayers.Control.PanZoom(), 
@@ -44,8 +49,8 @@ var optionsMap = {
 		           new OpenLayers.Control.ScaleLine({geodesic: true}),
 		           controlZoomBox
 		           ],
-		           projection: new OpenLayers.Projection("EPSG:900913"),
-		           displayProjection: new OpenLayers.Projection("EPSG:4326"),
+		           projection: projection1,
+		           displayProjection: projection2,
 		           units: "m",
 		           maxZoomLevel: 19,
 		           //maxResolution: 156543.0339,
@@ -95,6 +100,8 @@ publicMap.addControl(click);
 click.activate();
 function clearMarker() {
 	console.log("clearMarker");
+	features = [];
+	featuresId = [];
 	observationsVectorLayer.removeAllFeatures();
 	observationsVectorLayer.destroyFeatures();
 	observationsVectorLayer.addFeatures([]);
@@ -102,18 +109,7 @@ function clearMarker() {
 
 }
 
-function getMarker() {
-	clearMarker();
-	if (tabcheckchild != '') {
-		console.log("before display block");
-		document.getElementById("loader").style.display = "block";
-
-		var uri = 'lib/php/public/getMarker.php?listType='+tabcheckchild+'&dateLastModif='+dateLastModif+'&status='+StatusPOIFieldMapItemMenu.getValue()+'&priorite='+comboPrioritePOIMapItemMenu.getValue()+'&nbSupportMinimum='+nbSupportMinimum;
-
-		OpenLayers.loadURL(uri, '', this, displayMarker);
 
-	}
-}
 var singleObservationIdToDisplay;
 function getMarkerByID(id) {
 	clearMarker();
@@ -173,13 +169,27 @@ function displayMarkerAndCenterInPublicMap(response) {
 }
 
 var features = [];
+var featuresId = [];
+function displayNumberOfTotalRecords(response){
+	console.log("entering displayNumberOfTotalRecords");
+	document.getElementById("loader").style.display = "none";
+	var json = eval('(' + response.responseText + ')');
+	showTooltipNumberOfObservations(json.total_number_of_observations);
+}
 function displayMarker(response) {
+	console.log("entering displayMarker");
 	document.getElementById("loader").style.display = "none";
-	console.log("after display none");
 	var json = eval('(' + response.responseText + ')');
 	if (json.markers != null) {
 		for (var i=0; i<json.markers.length; i++) {
 			var id = json.markers[i].id;
+			if (!featuresId.includes(id)){
+				featuresId.push(id);
+			}else{
+				console.log("The feature " + id + " is still loaded");
+					continue;
+			}
+			console.log("Building feature " + id);
 			var lonlat = new OpenLayers.LonLat(json.markers[i].lon, json.markers[i].lat).transform(new OpenLayers.Projection("EPSG:4326"), publicMap.getProjectionObject());
 			var comments = '';
 			if (json.markers[i]['support']>0) {
@@ -215,10 +225,8 @@ function displayMarker(response) {
 			features.push(feat);
 		}
 		observationsVectorLayer.addFeatures(features);
-		showTooltipNumberOfObservations(features.length);
-		features = [];
-	}else{
-		showTooltipNumberOfObservations(0);
+		//showTooltipNumberOfObservations(features.length);
+		//features = [];
 	}
 }
 
@@ -718,6 +726,8 @@ function getCheckChild(tab) {
 	var currentTreeNodesChecked = treePanel.getChecked('id').join();
 	if (previousTreeNodesChecked!=currentTreeNodesChecked && treeLoaderFinished == 1){
 		previousTreeNodesChecked = treePanel.getChecked('id').join();
+		console.debug("in getCheckChild, before clearMarker and getMarker" );
+		clearMarker();
 		getMarker();
 	}
 }
@@ -936,6 +946,10 @@ click.activate();
 
 
 
+publicMap.events.register("moveend", publicMap, function() {
+	console.debug("in moveend, before getMarker" );
+	getMarker();
+});
 
 
 //publicMap.events.register('click',publicMap, function(e) {
@@ -988,28 +1002,34 @@ var mapPanel = new Ext.Panel({
 			if (afterLayoutVar == 0) {
 				var uri = 'lib/php/public/getDefaultConfigMap.php';
 				OpenLayers.loadURL(uri,'',this,setDefaultCenterMap);
+				console.log("mapPanel.afterLayout");
+				
 				afterLayoutVar = 1;
 			}
 		}
 	}
 });
-
+var setDefaultCenterMapDone = 0;
 function setDefaultCenterMap(response) {
 	var json = eval('('+response.responseText+')');
 	var long  = getCookie("mapx");
 	var lat  = getCookie("mapy");
 	var zoom  = getCookie("mapz");
 	console.debug("Cookie "+document.cookie);
+	setDefaultCenterMapDone = 1;
 	//si les infos de longitude, latitude et zoom sont dans les cookies, on les utilise, sinon on récupère les infos de la base de données
 	if(long != null && long != 0){
 		console.debug("Configmap from cookies");
 		publicMap.setCenter(new OpenLayers.LonLat(long,lat), zoom);
 		publicMap.setBaseLayer(publicMap.layers[0]);
+		console.debug("in setDefaultCenterMap, before clearMarker and getMarker" );
+		getMarker();
 	}else if (json.configmap != null) {
 		console.debug("Configmap from database");
 		publicMap.setCenter(new OpenLayers.LonLat(json.configmap[0].lon, json.configmap[0].lat).transform(new OpenLayers.Projection("EPSG:4326"), publicMap.getProjectionObject()), json.configmap[0].zoom);
 		publicMap.setBaseLayer(publicMap.layers[json.configmap[0].baselayer]);
 	}
+	
 }
 
 
@@ -1423,6 +1443,10 @@ var southPanelFormExportPOI = new Ext.form.FormPanel({
 	],
 	buttonAlign: 'center',
 	buttons: [{
+		text: T_delete_polygon,
+		handler: deleteExistingPolygon,
+		iconCls: 'silk_delete'
+	},{
 		text: T_submit,
 		handler: exportPublicPOI, //createPublicPOI
 		iconCls: 'silk_add'
@@ -1459,7 +1483,16 @@ function isPOIFormValid() {
 			feat != null
 	);
 }
-
+function deleteExistingPolygon() {
+	console.log('in deleteExistingPolygon');
+	//if the new observation marker is not created on the map, do not allow to create the observation
+	if (exportPolygonFeature != null){
+		exportPolygonFeature.destroy();
+		exportPolygonFeature = null;
+	}
+	resetPOIForm();
+	polygonControl.activate();
+}
 function createPublicPOI() {
 	console.log('feat' + feat);
 	//if the new observation marker is not created on the map, do not allow to create the observation
@@ -1636,3 +1669,19 @@ function setCookie() {
 }
 
 
+function getMarker() {
+	//clearMarker();
+	console.info('Dans map.js getMarker '+tabcheckchild);
+	if (tabcheckchild != '' && setDefaultCenterMapDone == 1) {
+		var bounds = publicMap.getExtent().transform(projection1, projection2).toGeometry().toString();
+		var alreadyLoadedObservations = featuresId.join();
+		document.getElementById("loader").style.display = "block";
+
+		var uri = 'lib/php/public/getMarker.php?listType='+tabcheckchild+'&dateLastModif='+dateLastModif+'&status='+StatusPOIFieldMapItemMenu.getValue()+'&priorite='+comboPrioritePOIMapItemMenu.getValue()+'&nbSupportMinimum='+nbSupportMinimum+'&bounds=' + bounds+'&alreadyLoadedObservations='+alreadyLoadedObservations ;
+		OpenLayers.loadURL(uri, '', this, displayMarker);
+		var uriCount = 'lib/php/public/getMarker.php?listType='+tabcheckchild+'&dateLastModif='+dateLastModif+'&status='+StatusPOIFieldMapItemMenu.getValue()+'&priorite='+comboPrioritePOIMapItemMenu.getValue()+'&nbSupportMinimum='+nbSupportMinimum+'&getCount=1' ;
+		OpenLayers.loadURL(uriCount, '', this, displayNumberOfTotalRecords);
+
+	}
+}
+
diff --git a/lib/js/translation_en.js b/lib/js/translation_en.js
index 234c384d..b5aa0b53 100644
--- a/lib/js/translation_en.js
+++ b/lib/js/translation_en.js
@@ -322,4 +322,5 @@ var T_custom_polygone = 'Polygon coordinates';
 var T_exportFormValidation = 'Only one field must be filled';
 var T_exportChoice = 'Export choice';
 var T_exportHelp = "Select a city OR a territory OR give a custom polygon (like \"POLYGON((1.30497 43.642535,1.30291 43.631851,1.304798 43.619052,1.311321 43.606748,1.320934 43.598792,1.30497 43.642535))\")";
-var T_print = 'Print pdf';
\ No newline at end of file
+var T_print = 'Print pdf';
+var T_delete_polygon = 'Reinitialize the export form';
\ No newline at end of file
diff --git a/lib/js/translation_fr.js b/lib/js/translation_fr.js
index 5ce221de..030afb6c 100644
--- a/lib/js/translation_fr.js
+++ b/lib/js/translation_fr.js
@@ -322,3 +322,4 @@ var T_exportFormValidation = 'Un seul et unique champ doit être renseigné';
 var T_exportChoice = 'Choix d\'export';
 var T_exportHelp = "Sélectionner un territoire OU un pôle OU une commune OU spécifiez un polygone soit en le dessinant sur la carte ou en le donnant sous la forme \"POLYGON((1.30497 43.642535,1.30291 43.631851,1.304798 43.619052,1.311321 43.606748,1.320934 43.598792,1.30497 43.642535))\"";
 var T_print = 'Imprimer pdf';
+var T_delete_polygon = 'Réinitialiser le formulaire d\'export';
diff --git a/lib/php/mobile/velObsRecord.php b/lib/php/mobile/velObsRecord.php
index 7586f186..cea49919 100644
--- a/lib/php/mobile/velObsRecord.php
+++ b/lib/php/mobile/velObsRecord.php
@@ -155,7 +155,7 @@
                     }
                     if ($num_rows2 == 0){
                     	/* envoi d'un mail aux administrateurs de l'association et modérateurs */
-                    	$whereClause = "u.usertype_id_usertype = 1 OR (u.usertype_id_usertype = 4 AND u.num_pole = ".$arrayObs['pole_id_pole'].")";
+                    	$whereClause = "u.usertype_id_usertype = 1 OR (u.usertype_id_usertype = 4 AND ulp.num_pole = ".$arrayObs['pole_id_pole'].")";
                     	$subject = 'Nouvelle observation à modérer sur le pole '.$arrayObs['lib_pole'];
                     	$message = "Bonjour !
 Une nouvelle observation a été ajoutée sur le pole ".$arrayObs['lib_pole'].". Veuillez vous connecter à l'interface d'administration pour la modérer.
diff --git a/lib/php/public/getJsonVotes.php b/lib/php/public/getJsonVotes.php
new file mode 100644
index 00000000..130aedf6
--- /dev/null
+++ b/lib/php/public/getJsonVotes.php
@@ -0,0 +1,48 @@
+<?php header('Content-Type: text/html; charset=UTF-8');
+session_start();	
+include_once '../key.php';
+	
+	switch (SGBD) {
+		case 'mysql':
+			$link = mysql_connect(DB_HOST,DB_USER,DB_PASS);
+			mysql_select_db(DB_NAME);
+			mysql_query("SET NAMES utf8mb4");
+			if (DEBUG){
+				error_log(date("Y-m-d H:i:s") . " - getJsonVotes.php, nb de votes à retourner :  ".$_GET['nb2return']."\n", 3, LOG_FILE);
+			}
+			$nbObservationsToReturn = 5;
+			if (isset($_GET['nb2return']) && is_numeric($_GET['nb2return']) && $_GET['nb2return'] > 0){
+				$nbObservationsToReturn = $_GET['nb2return'];
+			}
+			$sql = "SELECT count(*) as nb_votes, poi_poi_id, lib_subcategory, lib_pole, lib_territoire
+			FROM `support_poi` 
+			INNER JOIN poi ON poi.id_poi = support_poi.poi_poi_id 
+			INNER JOIN pole ON poi.pole_id_pole = pole.id_pole 
+			INNER JOIN territoire ON pole.territoire_id_territoire = territoire.id_territoire
+			INNER JOIN subcategory ON poi.subcategory_id_subcategory = subcategory.id_subcategory 
+			GROUP BY poi_poi_id 
+			ORDER BY nb_votes desc 
+			LIMIT " . $nbObservationsToReturn;
+		
+			$result = mysql_query($sql);
+			$i = 0;
+			
+			while ($row = mysql_fetch_array($result)){
+					$arr[$i]['nbVotes'] = $row['nb_votes'];
+					$arr[$i]['id_poi'] = $row['poi_poi_id'];
+					$arr[$i]['url'] = URL."/index.php?id=".$row['poi_poi_id'];
+					$arr[$i]['categorie'] = $row['lib_subcategory'];
+					$arr[$i]['territoire'] = $row['lib_territoire'] . " " . $row['lib_pole'];
+					$i++;
+			}
+			echo '{"statistiques":'.json_encode($arr).'}';
+		
+			mysql_free_result($result);
+			mysql_close($link);
+			break;
+		case 'postgresql':
+			// TODO
+			break;
+	}
+
+?>
\ No newline at end of file
diff --git a/lib/php/public/getMarker.php b/lib/php/public/getMarker.php
index f8fb8b20..75172f5e 100644
--- a/lib/php/public/getMarker.php
+++ b/lib/php/public/getMarker.php
@@ -6,6 +6,7 @@
 	case 'mysql' :
 		if (DEBUG) {
 			error_log ( date ( "Y-m-d H:i:s" ) . " - public/getMarker.php \n", 3, LOG_FILE );
+			error_log ( date ( "Y-m-d H:i:s" ) . " - bounds = ".$_GET['bounds']." \n", 3, LOG_FILE );
 		}
 		$link = mysql_connect ( DB_HOST, DB_USER, DB_PASS );
 		mysql_select_db ( DB_NAME );
@@ -19,8 +20,12 @@
 					status.lib_status,
 					status.color_status,
 					priorite.lib_priorite
-					FROM poi
-					INNER JOIN subcategory ON (subcategory.id_subcategory = poi.subcategory_id_subcategory)
+					FROM poi ";
+		if ($_GET ['getCount']){
+		    $sql = "SELECT COUNT(poi.id_poi) as total_number_of_observations
+					FROM poi ";
+		}
+		$sql .= "	INNER JOIN subcategory ON (subcategory.id_subcategory = poi.subcategory_id_subcategory)
 					INNER JOIN commune ON (commune.id_commune = poi.commune_id_commune)
 					INNER JOIN priorite ON (poi.priorite_id_priorite = priorite.id_priorite)
 					INNER JOIN status ON (status.id_status = poi.status_id_status) ";
@@ -39,7 +44,9 @@
 					error_log ( date ( "Y-m-d H:i:s" ) . " - public/getMarker.php datesqlappend = ".$datesqlappend."\n", 3, LOG_FILE );
 				}
 			}
-			
+			if (isset($_GET['bounds']) && $_GET['bounds'] != ''){
+			    $boundsSQL = " AND ST_Within(poi.geom_poi,ST_GeomFromText('".$_GET['bounds']."') )=1 ";
+			}
 			if (isset ($_GET ['status']) && ($_GET ['status'] == "" || $_GET ['status'] == 'all'|| $_GET ['status'] == 'undefined')) {
 				$statussqlappend = '';
 			} else {
@@ -57,14 +64,28 @@
 			if (isset ( $_GET ["nbSupportMinimum"] ) && $_GET ["nbSupportMinimum"] != '' && $_GET ["nbSupportMinimum"] > 0) { // filter by status given by the collectivity
 			    $sqlappend .= ' AND poi.id_poi IN (select poi_poi_id from support_poi group by poi_poi_id having count(*) >= '.$_GET ["nbSupportMinimum"].')';
 			}
-			$sqlappend .= $datesqlappend . $statussqlappend;
+			if (isset ( $_GET ["alreadyLoadedObservations"] ) && $_GET ["alreadyLoadedObservations"] != '') { // filter by status given by the collectivity
+			    $sqlappend .= ' AND poi.id_poi NOT IN ('.$_GET ["alreadyLoadedObservations"].')';
+			}
+			
+			$sqlappend .= $datesqlappend . $statussqlappend . $boundsSQL;
 		}
 		$sql .= $sqlappend;
 		$result = mysql_query ( $sql );
 		if (DEBUG) {
 			error_log ( date ( "Y-m-d H:i:s" ) . " - public/getMarker.php sql = $sql\n", 3, LOG_FILE );
-			error_log ( date ( "Y-m-d H:i:s" ) . " - public/getMarker.php sql = $datesqlappend\n", 3, LOG_FILE );
+			error_log ( date ( "Y-m-d H:i:s" ) . " - public/getMarker.php datesqlappend = $datesqlappend\n", 3, LOG_FILE );
 		}
+		
+		if ($_GET ['getCount']){
+		    
+		    
+		    while ( $row = mysql_fetch_array ( $result ) ) {
+		        $total_number_of_observations = $row ['total_number_of_observations'];
+		        
+		    }
+		    echo '{"total_number_of_observations":' . $total_number_of_observations . '}';
+		}else{
 		$i = 0;
 		while ( $row = mysql_fetch_array ( $result ) ) {
 			$arr [$i] ['id'] = $row ['id_poi'];
@@ -111,6 +132,7 @@
 			error_log ( date ( "Y-m-d H:i:s" ) . " - public/getMarker.php Nombre d'observations correspondantes = " . $i."\n", 3, LOG_FILE );
 		}
 		echo '{"markers":' . json_encode ( $arr ) . '}';
+		}
 		
 		mysql_free_result ( $result );
 		mysql_close ( $link );