Please see http://corgitoergosum.net/?p=1296 for details.

JS for laying out cards in a wheel

/*
pseudo code:
*/
var singleRotationValue = 360/this.images;
for (var i=0; i<this.images; i++){
var cardElement = document.createElement(‘div’);
var rotation = singleRotationValue*i + 180;
var applyTransform = ‘ rotateZ(‘ + rotation + ‘deg) translateY(‘ + wheelRadius + ‘) translateX(‘ + wheelRadius + ‘)’;
cardElement.style.webkitTransform = applyTransform;

// add to wheel…
}