Rotate the page 180 degrees every half houR LATEST TRICK

Rotate the page 180 degrees every half hour, I put this in the ticket-magement system we use at work. COPY FOLLOWING JAVA SCRIPT

(function(){

    function rotate(degrees)

    {

        $('html').css({

            '-webkit-transform':'rotate(-' + degrees + 'deg)',

            '-moz-transform':'rotate(-' + degrees + 'deg)',

            '-ms-transform':'rotate(-' + degrees + 'deg)',

            '-o-transform':'rotate(-' + degrees + 'deg)',

            'transform':'rotate(-' + degrees + 'deg)',

            '-webkit-transition':'2s',

            '-moz-transition':'2s',

            '-ms-transition':'2s',

            '-o-transition':'2s',

            'transition':'2s',

            '-webkit-transform-origin':'50% 50%',

            '-moz-transform-origin':'50% 50%',

            '-ms-transform-origin':'50% 50%',

            '-o-transform-origin':'50% 50%',

            'transform-origin':'50% 50%',

            '-webkit-backface-visibility':'hidden'

        });

    }

    var degrees = 180,

        interval;

    document.onmousemove = function()

    {

        if(degrees == 0){ rotate(0); degrees = 180; }

        clearInterval(interval);

        interval = setInterval(function(){

            rotate(degrees);

            degrees = (degrees === 180) ? 0 : 180;

        }, 30 * 60 * 1000); // 30 min

    }

})();