diff --git a/examples/advanced/dataviz_example.html b/examples/advanced/dataviz_example.html
index 6a7a4f2..b09207d 100644
--- a/examples/advanced/dataviz_example.html
+++ b/examples/advanced/dataviz_example.html
@@ -5,32 +5,6 @@
     <title>Dataviz example with jQuery Mapael</title>
     <meta charset="utf-8"/>
     <style type="text/css">
-        .mapTooltip {
-            position: absolute;
-            background-color: #fff;
-            moz-opacity: 0.80;
-            opacity: 0.80;
-            filter: alpha(opacity=80);
-            border-radius: 4px;
-            padding: 10px;
-            z-index: 1000;
-            max-width: 200px;
-            display: none;
-            color: #232323;
-        }
-
-        .cityFrance {
-            background-color: #343434;
-            border-radius: 10px;
-            width: 400px;
-        }
-
-        .mapLegend {
-        }
-
-        .map {
-            position: relative;
-        }
 
         h1 {
             font-size: 30px;
@@ -73,7 +47,25 @@
             margin-left: 5px;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+        
+        .mapael .mapTooltip {
+            position: absolute;
+            background-color: #fff;
+            moz-opacity: 0.80;
+            opacity: 0.80;
+            filter: alpha(opacity=80);
+            border-radius: 4px;
+            padding: 10px;
+            z-index: 1000;
+            max-width: 200px;
+            display: none;
+            color: #232323;
+        }
+        
+        .mapael .map {
             margin-right: 228px;
             overflow: hidden;
             position: relative;
@@ -81,7 +73,8 @@
             border-radius: 5px;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #dbdbdb;
             border: 1px solid #cfcfcf;
             color: #161616;
@@ -103,7 +96,7 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 35px;
         }
     </style>
diff --git a/examples/advanced/eventHandlers_display_information_about_plotted_cities.html b/examples/advanced/eventHandlers_display_information_about_plotted_cities.html
index eb1075c..e91230c 100644
--- a/examples/advanced/eventHandlers_display_information_about_plotted_cities.html
+++ b/examples/advanced/eventHandlers_display_information_about_plotted_cities.html
@@ -20,11 +20,24 @@
             margin: auto;
         }
 
-        .map {
+        .myText {
+            background-color: #343434;
+            height: 100px;
+            padding: 10px;
+            color: #fff;
+            overflow: auto;
+            margin: 10px;
+        }
+
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -37,15 +50,6 @@
             display: none;
             color: #343434;
         }
-
-        .myText {
-            background-color: #343434;
-            height: 100px;
-            padding: 10px;
-            color: #fff;
-            overflow: auto;
-            margin: 10px;
-        }
     </style>
 
     <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js" charset="utf-8"></script>
diff --git a/examples/advanced/eventHandlers_option_and_update_event_refresh_onclick.html b/examples/advanced/eventHandlers_option_and_update_event_refresh_onclick.html
index f9a0f12..ac47aa7 100644
--- a/examples/advanced/eventHandlers_option_and_update_event_refresh_onclick.html
+++ b/examples/advanced/eventHandlers_option_and_update_event_refresh_onclick.html
@@ -21,7 +21,11 @@
             margin: auto;
         }
 
-        .mapTooltip {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -35,7 +39,8 @@
             color: #343434;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -56,11 +61,11 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
 
-        .map {
+        .mapael .map {
             position: relative;
         }
     </style>
diff --git a/examples/advanced/initial_zoom_level_on_a_specific_position.html b/examples/advanced/initial_zoom_level_on_a_specific_position.html
index b21862d..6e1ef3d 100644
--- a/examples/advanced/initial_zoom_level_on_a_specific_position.html
+++ b/examples/advanced/initial_zoom_level_on_a_specific_position.html
@@ -20,7 +20,15 @@
             margin: auto;
         }
 
-        .mapTooltip {
+        .mapcontainer {
+            margin: 10px;
+        }
+
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -34,7 +42,8 @@
             color: #343434;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -56,18 +65,14 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
 
-        .map {
+        .mapael .map {
             position: relative;
             background-color: #cddee0;
         }
-
-        .mapcontainer {
-            margin: 10px;
-        }
     </style>
 
     <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js" charset="utf-8"></script>
diff --git a/examples/advanced/legend_show_hide.html b/examples/advanced/legend_show_hide.html
index 6639897..c4a0e07 100644
--- a/examples/advanced/legend_show_hide.html
+++ b/examples/advanced/legend_show_hide.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
diff --git a/examples/advanced/links_between_plotted_cities.html b/examples/advanced/links_between_plotted_cities.html
index 0365834..d582892 100644
--- a/examples/advanced/links_between_plotted_cities.html
+++ b/examples/advanced/links_between_plotted_cities.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
diff --git a/examples/advanced/multiple_legends_plotted_cities.html b/examples/advanced/multiple_legends_plotted_cities.html
index 2a4960f..8d2882a 100644
--- a/examples/advanced/multiple_legends_plotted_cities.html
+++ b/examples/advanced/multiple_legends_plotted_cities.html
@@ -22,13 +22,16 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
             margin-bottom: 10px;
         }
 
-        /* CSS for the tooltip displayed on mousehover on elements */
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #474c4b;
             moz-opacity: 0.70;
diff --git a/examples/advanced/update_event_for_refreshing_elements.html b/examples/advanced/update_event_for_refreshing_elements.html
index 47d7022..3d75872 100644
--- a/examples/advanced/update_event_for_refreshing_elements.html
+++ b/examples/advanced/update_event_for_refreshing_elements.html
@@ -20,7 +20,11 @@
             margin: auto;
         }
 
-        .mapTooltip {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -34,7 +38,8 @@
             color: #343434;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -56,11 +61,11 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
 
-        .map {
+        .mapael .map {
             background-color: #cddee0;
             margin: 10px;
             position: relative;
diff --git a/examples/advanced/updates_on_links_performed.html b/examples/advanced/updates_on_links_performed.html
index c0a56d7..6bc2f7b 100644
--- a/examples/advanced/updates_on_links_performed.html
+++ b/examples/advanced/updates_on_links_performed.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: fixed;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -38,7 +42,8 @@
             color: #343434;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -60,7 +65,7 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
     </style>
diff --git a/examples/advanced/zoom_event_on_specific_area.html b/examples/advanced/zoom_event_on_specific_area.html
index ac1cef8..ac521b7 100644
--- a/examples/advanced/zoom_event_on_specific_area.html
+++ b/examples/advanced/zoom_event_on_specific_area.html
@@ -20,7 +20,11 @@
             margin: auto;
         }
 
-        .mapTooltip {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -34,7 +38,8 @@
             color: #343434;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -56,11 +61,11 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
 
-        .map {
+        .mapael .map {
             position: relative;
         }
 
diff --git a/examples/basic/horizontal_legend.html b/examples/basic/horizontal_legend.html
index 083491c..1dc82eb 100644
--- a/examples/basic/horizontal_legend.html
+++ b/examples/basic/horizontal_legend.html
@@ -19,12 +19,16 @@
             max-width: 800px;
             margin: auto;
         }
+        
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
 
-        .map {
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -38,7 +42,7 @@
             color: #343434;
         }
 
-        .areaLegend {
+        .mapael .areaLegend {
             margin-bottom: 20px;
         }
     </style>
diff --git a/examples/basic/href_areas_plotted_cities.html b/examples/basic/href_areas_plotted_cities.html
index 687818a..468ee9d 100644
--- a/examples/basic/href_areas_plotted_cities.html
+++ b/examples/basic/href_areas_plotted_cities.html
@@ -20,11 +20,16 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn, 
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -46,12 +51,11 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
 
-        /* CSS for the tooltip displayed on mousehover on elements */
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #474c4b;
             moz-opacity: 0.70;
diff --git a/examples/basic/legendSpecificAttrs_option.html b/examples/basic/legendSpecificAttrs_option.html
index 5ed548e..6ff4a4d 100644
--- a/examples/basic/legendSpecificAttrs_option.html
+++ b/examples/basic/legendSpecificAttrs_option.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: fixed;
             background-color: #fff;
             moz-opacity: 0.70;
diff --git a/examples/basic/legend_SVG_paths.html b/examples/basic/legend_SVG_paths.html
index 4756605..d95d6e1 100644
--- a/examples/basic/legend_SVG_paths.html
+++ b/examples/basic/legend_SVG_paths.html
@@ -20,13 +20,17 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
             background-color:#cddee0;
             margin-bottom:10px;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position : absolute;
             background-color : #474c4b;
             moz-opacity:0.70;
@@ -40,7 +44,8 @@
             color:#fff;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -62,7 +67,7 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
     </style>
diff --git a/examples/basic/legend_areas.html b/examples/basic/legend_areas.html
index f16b2df..680c720 100644
--- a/examples/basic/legend_areas.html
+++ b/examples/basic/legend_areas.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
diff --git a/examples/basic/legend_areas_one_item_activated_at_a_time.html b/examples/basic/legend_areas_one_item_activated_at_a_time.html
index b45b3c3..c084ef8 100644
--- a/examples/basic/legend_areas_one_item_activated_at_a_time.html
+++ b/examples/basic/legend_areas_one_item_activated_at_a_time.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
diff --git a/examples/basic/legend_images.html b/examples/basic/legend_images.html
index 7e7383a..1607fe5 100644
--- a/examples/basic/legend_images.html
+++ b/examples/basic/legend_images.html
@@ -20,13 +20,17 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
             background-color:#cddee0;
             margin-bottom:10px;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #474c4b;
             moz-opacity: 0.70;
diff --git a/examples/basic/legend_plotted_cities.html b/examples/basic/legend_plotted_cities.html
index 99045e1..a7c3be7 100644
--- a/examples/basic/legend_plotted_cities.html
+++ b/examples/basic/legend_plotted_cities.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
@@ -38,7 +42,7 @@
             color: #343434;
         }
 
-        .myLegend {
+        .mapael .myLegend {
             width: 400px;
             border: 1px solid #bebeb4;
             background-color: #f4f4e8;
diff --git a/examples/basic/legend_plotted_cities_areas.html b/examples/basic/legend_plotted_cities_areas.html
index f091771..77b3e31 100644
--- a/examples/basic/legend_plotted_cities_areas.html
+++ b/examples/basic/legend_plotted_cities_areas.html
@@ -19,12 +19,16 @@
             max-width: 800px;
             margin: auto;
         }
+        
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
 
-        .map {
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
diff --git a/examples/basic/legend_slices_fixed_values.html b/examples/basic/legend_slices_fixed_values.html
index c88c04d..aee84a5 100644
--- a/examples/basic/legend_slices_fixed_values.html
+++ b/examples/basic/legend_slices_fixed_values.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #fff;
             moz-opacity: 0.70;
diff --git a/examples/basic/plotted_cities_areas.html b/examples/basic/plotted_cities_areas.html
index cb5e5d6..0bebed0 100644
--- a/examples/basic/plotted_cities_areas.html
+++ b/examples/basic/plotted_cities_areas.html
@@ -20,11 +20,15 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             position: relative;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #474c4b;
             moz-opacity: 0.70;
diff --git a/examples/basic/zoom_features.html b/examples/basic/zoom_features.html
index 85d4d7f..ebd3343 100644
--- a/examples/basic/zoom_features.html
+++ b/examples/basic/zoom_features.html
@@ -20,13 +20,18 @@
             margin: auto;
         }
 
-        .map {
+        /* Specific mapael css class are below
+         * 'mapael' class is added by plugin
+        */
+
+        .mapael .map {
             background-color: #cddee0;
             margin-bottom: 10px;
             position: relative;
         }
 
-        .zoomIn, .zoomOut {
+        .mapael .zoomIn,
+        .mapael .zoomOut {
             background-color: #fff;
             border: 1px solid #ccc;
             color: #000;
@@ -48,11 +53,11 @@
             user-select: none;
         }
 
-        .zoomOut {
+        .mapael .zoomOut {
             top: 30px;
         }
 
-        .mapTooltip {
+        .mapael .mapTooltip {
             position: absolute;
             background-color: #474c4b;
             moz-opacity: 0.70;
diff --git a/js/jquery.mapael.js b/js/jquery.mapael.js
index 2ccea4a..8f1d358 100644
--- a/js/jquery.mapael.js
+++ b/js/jquery.mapael.js
@@ -25,6 +25,8 @@
 }(function ($, Raphael, mousewheel) { // jshint ignore:line
 
     "use strict";
+    
+    var pluginName = "mapael";
 
     var Mapael = function(options) {
     
@@ -41,11 +43,18 @@
         });
         
         return this.each(function() {
+            
+            // Avoid multiple instanciation
+            if ($.data(this, pluginName)) throw new Error("Mapael already exists on this element.");
+            
+            // Save instanciation on element
+            // This allow external access to Mapael using $(".mapcontainer").data("mapael")
+            $.data(this, pluginName, Mapael);
         
             var $self = $(this)
                 , $tooltip = $("<div>").addClass(options.map.tooltip.cssClass).css("display", "none")
                 , $container = $("." + options.map.cssClass, this).empty().append($tooltip)
-                , mapConf = $.fn.mapael.maps[options.map.name]
+                , mapConf = $.fn[pluginName].maps[options.map.name]
                 , paper = new Raphael($container[0], mapConf.width, mapConf.height)
                 , elemOptions = {}
                 , resizeTO = 0
@@ -55,6 +64,9 @@
                 , zoomCenterX = 0
                 , zoomCenterY = 0
                 , previousPinchDist = 0;
+                
+            // add plugin class name on element
+            $self.addClass(pluginName);
             
             if (options.map.tooltip.css) $tooltip.css(options.map.tooltip.css);
             paper.setViewBox(0, 0, mapConf.width, mapConf.height, false);
@@ -190,7 +202,7 @@
 
                             if (Math.abs(pinchDist - previousPinchDist) > 15) {
                                 offset = $container.offset();
-                                initFactor = (options.map.width) ? (Mapael.maps[options.map.name].width / options.map.width) : ($.fn.mapael.maps[options.map.name].width / $container.width());
+                                initFactor = (options.map.width) ? (Mapael.maps[options.map.name].width / options.map.width) : ($.fn[pluginName].maps[options.map.name].width / $container.width());
                                 zoomFactor = 1 / (1 + ($self.data("zoomLevel")) * options.map.zoom.step);
                                 x = zoomFactor * initFactor * (zoomCenterX + $(window).scrollLeft() - offset.left) + $self.data("panX");
                                 y = zoomFactor * initFactor * (zoomCenterY + $(window).scrollTop() - offset.top) + $self.data("panY");
@@ -1612,8 +1624,6 @@
     };
 
     // jQuery access
-    $.fn.mapael = Mapael;
-
-    return $.fn.mapael;
+    $.fn[pluginName] = Mapael;
 
 }));