title: Google Map KML Auto refresh
body: <p>I have kml google map which does not auto refresh. Does anybody have an idea how to do it?</p>
  
  <p>My kml code:</p>
  
  <pre><code>&lt;kml xmlns="http://earth.google.com/kml/2.0"&gt;
      &lt;Document&gt;
          &lt;visiblity&gt;1&lt;/visiblity&gt;
          &lt;NetworkLink&gt;
              &lt;name&gt;USGS WaterWatch&lt;/name&gt;
              &lt;flyToView&gt;1&lt;/flyToView&gt;
              &lt;Url&gt;
                  &lt;href&gt;&lt;![CDATA[http://waterwatch.usgs.gov/?m=real&amp;w=kml&amp;regions=co]]&gt;&lt;/href&gt;
                  &lt;refreshMode&gt;onInterval&lt;/refreshMode&gt;
                  &lt;refreshInterval&gt;3600&lt;/refreshInterval&gt;
                  &lt;viewRefreshMode&gt;never&lt;/viewRefreshMode&gt;
                  &lt;viewRefreshTime&gt;1800&lt;/viewRefreshTime&gt;
              &lt;/Url&gt;
              &lt;refreshVisibility&gt;1&lt;/refreshVisibility&gt;
          &lt;/NetworkLink&gt;
      &lt;/Document&gt;
  &lt;/kml&gt;
  </code></pre>