Nice, downward compatible, touchable, jQuery dial. 
* implemented interactions : mouse click and wheel mouse, keyboard (on focus) and fingers (touch events)
× Disable display input
data-width="100"
data-displayInput=false
× 'cursor' mode
data-width="150"
data-cursor=true
data-thickness=.3
data-fgColor="#222222"
× Display previous value
data-displayPrevious=true
data-min="-100"
× Angle offset
data-angleOffset=90
× Angle offset and arc
data-fgColor="#66CC66"
data-angleOffset=-125
data-angleArc=250
× 5-digit values
data-min="-15000"
data-max="15000"
× Overloaded 'draw' method
data-width="75"
data-fgColor="#ffec03"
data-skin="tron"
data-thickness=".2"
data-displayPrevious=true
data-width="150"
data-fgColor="#ffec03"
data-skin="tron"
data-thickness=".2"
data-displayPrevious=true
data-width="150"
data-fgColor="#C0ffff"
data-skin="tron"
data-thickness=".1"
data-angleOffset="180"
× Readonly
data-thickness=".4"
data-fgColor="chartreuse"
data-readOnly=true
× Dynamic
data-width="200"
data-width="50"
data-cursor=true
× Infinite || iPod click wheel
data-width="150"
data-cursor=true
data-thickness=".5"
data-fgColor="#AAAAAA"
data-bgColor="#FFFFFF"
data-displayInput="false"
+ some code
× Big !
data-width="700"
jQuery Knob is © 2012 Anthony Terrien and dual licensed under the MIT or GPL licenses.