text: $(function () {
      (function () {
  
          var handle = $(".js-slider-handle"),
              text = $(".js-slider-text");
  
          $( ".js-slider" ).slider({
              range: "min",
              value: 7,
              min: 7,
              max: 30,
              create: function() {
                  text.text( $(this).slider( "value" ) );
              },
              slide: function( event, ui ) {
                  App.calc.tarif = Math.max(0, parseInt(ui.value) - 7);
                  text.text( ui.value );
              }
          });
  
      })();
  });