function fetch_weather() {
    new Ajax.Request('/weather_bug/fetch',
    {
    method:'get',
    onSuccess: function(transport){
      var response = transport.responseText || "no response text";
      $('wb_content').innerHTML = response;
    },
    onFailure: function(){  $('wb_content').innerHTML = "Sorry, no weather data is available"; }
    });
}