anchor.diff:          $(terrain).show();
           $(this).hide();
         });
  -      var refresh = $('<a class="button">refresh</a>').css(buttonStyle).click(function() {
  +      var refresh = $('<a class="button">search map</a>').css(buttonStyle).click(function() {
           var center = window.map.getCenter();
           getObs('<%= observations_path(:format => "json", :partial => "cached_component", :q => "") %>'+
               '&lat='+center.lat()+'&lng='+center.lng(), {
  
positive.code:   <div id="maploading"><span class="loading status eee">Loading observations...</span></div>
  </div>
  
  <div id="observations" class="compact mini observations" style="display: none">
    <div class="loading status">
      Loading...
    </div>
  
negative.code:           lon: center.lng()
          });
        });
        var current = $('<a class="button">near me</a>').css(buttonStyle).click(function() {
          navigator.geolocation.getCurrentPosition(getCurrentPositionSuccess, getCurrentPositionFailure)
        });
        
  