Basic
                

                    

                        

                    
                
            
            

                
            
        

    



    
    

    /* CSS */

.knob_plug{
   text-align: center;
}

   /* Knob Jquery Javascript control function */
$(function($) {
"use strict";

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

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

this.cursorExt = 0.3;

var a = this.arc(this.cv)  // Arc
, pa                   // Previous arc
, r = 1;

this.g.lineWidth = this.lineWidth;

if (this.o.displayPrevious) {
pa = this.arc(this.v);
this.g.beginPath();
this.g.strokeStyle = this.pColor;
this.g.arc(this.xy, this.xy, this.radius - this.lineWidth, pa.s, pa.e, pa.d);
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, a.s, a.e, a.d);
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;
}
}
});

// Example of infinite knob, iPod click wheel
var v, up=0,down=0,i=0
,$idir = $("div.idir")
,$ival = $("div.ival")
,incr = function() { i++; $idir.show().html("+").fadeOut(); $ival.html(i); }
,decr = function() { i--; $idir.show().html("-").fadeOut(); $ival.html(i); };
$("input.infinite").knob(
{
min : 0
, max : 20
, stopper : false
, change : function () {
if(v > this.cv){
if(up){
decr();
up=0;
}else{up=1;down=0;}
} else {
if(v < this.cv){
if(down){
incr();
down=0;
}else{down=1;up=0;}
}
}
v = this.cv;
}
});
});


//Superpose (clock) function

function clock() {
var $s = $(".second"),
$m = $(".minute"),
$h = $(".hour");
d = new Date(),
s = d.getSeconds(),
m = d.getMinutes(),
h = d.getHours();
$s.val(s).trigger("change");
$m.val(m).trigger("change");
$h.val(h).trigger("change");
setTimeout("clock()", 1000);
}
clock();