title: setRadius: not a number, Google Maps V3 in MVC 5
body: <p>I'm trying to show a map with a marker and a circle in a MVC 5 project.
  The map shows with the marker but on the circle method a get the error setRadius: not a number.</p>
  
  <p>Here the code:</p>
  
  <pre><code>    &lt;script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"&gt;&lt;/script&gt;
  &lt;script type="text/javascript"&gt;
      $(document).ready(function () {
          initialize();
      });
      function initialize() {
  
          var myLat = '@Model.Lat'.replace(',', '.').replace(' ', '');
          var myLong = '@Model.Lon'.replace(',', '.').replace(' ', '');
  
          var rad = '@Model.Acc'.replace(',', '.').replace(' ', '');
  
          var center = new google.maps.LatLng(myLat, myLong); // LatLng of center point of circle
  
          var mapOptions = {
              center: center,
              zoom: 16,
              mapTypeId: google.maps.MapTypeId.ROADMAP
          };
  
          var map = new google.maps.Map(document.getElementById("map_canvas"),
            mapOptions);
          // create a marker
          var marker = new google.maps.Marker({
              position: center,
              map: map,
              title: 'My Place'
          });
  
          var options = {
              strokeColor: '#0000FF',
              strokeOpacity: 1.0,
              strokeWeight: 1,
              fillColor: '#3366FF',
              fillOpacity: 0.5,
              map: map,
              center: center,
              radius: rad
          };
  
          circle = new google.maps.Circle(options);
      }
  &lt;/script&gt;
  
  &lt;br /&gt;
  &lt;div id="map_canvas" style="width:100%; height:480px;"&gt;
  &lt;/div&gt;  
  </code></pre>
  
  <p>I displayed the variable rad with an alert and the value is 10.5, if I set manually the option radius to 10.5 it works.</p>
  
  <p>What is the problem?</p>