 jQueryKnob */

    $(".knob").knob({
      /*change : function (value) {
       //console.log("change : " + value);
       },
       release : function (value) {
       console.log("release : " + value);
       },
       cancel : function () {
       console.log("cancel : " + this.value);
       },*/
      draw: function () {

        // "tron" case
        if (this.$.data('skin') == 'tron') {

          var a = this.angle(this.cv)  // Angle
              , sa = this.startAngle          // Previous start a