This example demonstrates the use of the
      ALKMaps.Layer.WeatherAlerts layer, and how you can display
      popups with detailed alert information when an alert is clicked. This
      example also shows how you can customize both the default
      ALKMaps.Control.WeatherAlertLegend and
      ALKMaps.Control.WeatherAlertOption controls using external
      divs and custom css classes.
    
      In order to display the Weather Alert information popups, you will need
      to use a ALKMaps.Control.FeatureEvent control to handle
      click events on the Weather Alert polygons. Once activated a
      ALKMaps.Control.SelectFeature or
      ALKMaps.Control.FeatureEvent control, will override any
      other event handling on the area of the map covered by features on the
      specified layer. This will prevent you from doing things such as panning
      if your mouse is located over one of these features. In order to handle
      this, you can temporarily deactivate the control. In this example we use
      the checkbox at the bottom of the page to demonstrate this
      functionality.