text: $(function () {    
      $(".knob2").knob({
          draw: function () {
             //style rtl
              this.i.css({
                  'margin-right': '-' + ((this.w * 3 / 4 + 2) >> 0) + 'px',
                  'margin-left': 'auto'
              });
              // "tron" case
              if (this.$.data('skin') == 'tron') {
  
                  var a = this.angle(this.cv)  // Angle
                      , sa = this.startAngle          // Previous start angle
                      , sat = this.startAngle         // Start angle
                      , ea                            // Previous end angle
                      , eat = sat + a                 // End angle
                      , r = true;
  
                  this.g.lineWidth = this.lineWidth;
  
                  this.o.cursor
                      && (sat = eat - 0.3)
                      && (eat = eat + 0.3);
  
                  if (this.o.displayPrevious) {
                      ea = this.startAngle + this.angle(this.value);
                      this.o.cursor
                          && (sa = ea - 0.3)
                          && (ea = ea + 0.3);
                      this.g.beginPath();
                      this.g.strokeStyle = this.previousColor;
                      this.g.arc(this.xy, this.xy, this.radius - this.lineWidth, sa, ea, false);
                      this.g.stroke();
                  }
  
                  this.g.beginPath();
                  this.g.strokeStyle = r ? this.o.fgColor : this.fgColor;
                  this.g.arc(this.xy, this.xy, this.radius - this.lineWidth, sat, eat, false);
                  this.g.stroke();
  
                  this.g.lineWidth = 2;
                  this.g.beginPath();
                  this.g.strokeStyle = this.o.fgColor;
                  this.g.arc(this.xy, this.xy, this.radius - this.lineWidth + 1 + this.lineWidth * 2 / 3, 0, 2 * Math.PI, false);
                  this.g.stroke();
  
                  return false;
              }
          },
          'format' : function (value) {
              return value + '%';
           }
      });
  });
  