anchor.diff:        return params;
       }
   
  +    var opt = get_url_params();
  +
       var vis_data = {
  -       title: table_name,
  -       description: table_description,
  -       center: [0, 0],
  -       zoom: 4,
  -
  +       title: opt.title === 'true' ? table_name:null,
  +       description: opt.description === 'true' ? table_description: null,
          overlays: [
           {
  -          type: 'header'
  -        },
  -        { 
             type: 'zoom',
             template: '<a class="zoom_in">+</a> <a class="zoom_out">-</a>'
           }
  
positive.code: 
        layers: [
          base_layer_tilejson,
          data_layer_tilejson 
        ]
      };
  
      var opt = get_url_params();
  
      var southWest = new L.LatLng(opt.sw_lat || -40, opt.sw_lon || -80)
        , northEast = new L.LatLng(opt.ne_lat || 72, opt.ne_lon || 80)
        , bounds = new L.LatLngBounds(southWest, northEast);
  
      if(opt.sql) {
        data_layer_tilejson.query = opt.sql;
  
negative.code:     <script id="infowindow_template" type="text/tmpl">
        <div class="cartodb-popup">
          <div class="cartodb-popup-content-wrapper">
            <div class="cartodb-popup-content">
              {{#content.fields}}
              {{#title}}<h4>{{title}}</h4>{{/title}}
              <p>{{value}}</p> {{/content.fields}}
            </div>
          </div>
          <div class="cartodb-popup-tip-container">
          </div>
        </div>
      </script>
  
  