anchor.diff:        </div>
         <br>
         <div class="input-group">
  -        <%=text_field_tag "disabled", birth_filter.value, class: "form-control", id: "year-range-display", disabled: true, placeholder: "Birth Year"%>
  -        <%= hidden_field_tag 'birth_range', birth_filter.value, class: "form-control", id: "year-range", data: { "absolute-min" => birth_filter.absolute_min, "absolute-max" => birth_filter.absolute_max }%>
  +        <%=hidden_field_tag "disabled", birth_filter.value, class: "form-control", id: "year-range-display", disabled: true, placeholder: "Birth Year"%>
  +        <%= text_field_tag 'birth_range', birth_filter.value, class: "form-control", id: "year-range", data: { "absolute-min" => birth_filter.absolute_min, "absolute-max" => birth_filter.absolute_max }%>
           <div class="input-group-btn">
            <button type="submit" class="btn btn-default" id="range-filter">Search</button>
           </div>
  
positive.code:           $( "#year-range-display" ).val( ui.values[ 0 ] + " - " + ui.values[ 1 ] );
          }
        });
          var birth_range = $("#year-range-display");
          var params = "<%=@search.params.to_query%>"
        $("#range-filter").click(function(e){
          e.preventDefault();
          $.ajax({
            method: 'GET',
            url: 'birth_range',
            data: { birth_range: birth_range[0].value,
            search_params: params }
          });
        });
  
negative.code: 
        if (current != '') {
          var splits = current.split(' - ');
  //        var splits = current.split(/\s*\-\s*/g);
          current_min = parseFloat(splits[0]);
          current_max = parseFloat(splits[1]);
        }
  