$(function(){

    var props = 'transform WebkitTransform MozTransform OTransform msTransform'.split(' '),
        prop,
        el = document.createElement('div');

    for(var i = 0, l = props.length; i < l; i++) {
        if(typeof el.style[props[i]] !== "undefined") {
            prop = props[i];
            break;
        }
    }

   
    startClock();

    function startClock() {
        var angle = 360/60,
            date = new Date(),
            hour = (function() {
                var h = date.getHours();
                if(h > 12) {
                    h = h - 12;
                }
                return h
            })(),
          
            second = date.getSeconds();

        if(prop) {        
            $('#pizza')[0].style[prop] = 'rotate('+angle * (second /2)+'deg)';
        }
    }
});