title: Error while display map via gmap3
body: <p>I am working on to display the map on my web screen. but facing some Error while displaying it.</p>
  
  <p>Error :-</p>
  
  <pre><code>TypeError: $("#driver_map").gmap3 is not a function
  </code></pre>
  
  <p>Code :- </p>
  
  <pre><code>%script{:src=&gt;'../assets/public/js/gmap3.js'}
  %script{:src=&gt;'http://maps.google.com/maps/api/js?sensor=false' :type=&gt;'text/javascript'}
  %script{:src=&gt;'../assets/public/js/jquery-1.6.4.js'}
  
  %html
    %head
      %body
        %div{:id=&gt;"driver_map"}
  
  :javascript
    $(function(){
      $('#driver_map').gmap3(
        { action:'init',
          options:{
            center:[46.578498,2.457275],
            zoom: 5
          }
        },
        { action: 'addMarkers',
          markers:[
            {lat:48.8620722, lng:2.352047, data:'Paris !'},
            {lat:46.59433,lng:0.342236, data:'Poitiers : great city !'},
            {lat:42.704931, lng:2.894697, data:'Perpignan ! &lt;br&gt; GO USAP !'}
          ],            
        }
      );
    });  
  </code></pre>
  
  <p>Please help me to solve this error.</p>