source: extensions/MenuRandomPhoto/mrp.js

$(function()
{
    if (typeof MRP_blockHeight === 'undefined')
        return;

    $('#imrp_ill0').width(MRP_blockHeight);
    $('#imrp_ill0').height(MRP_blockHeight);

    var randomPict = MRP_Opt['pictures'];
    if (randomPict.length > 1 && $("#mbRandomPhoto").length > 0) 
    {
        $('#imrp_ill0 a').attr("href", randomPict[0]['link']);
        $('#imrp_ill0 img').attr("src", randomPict[0]['thumb']);

        var nextFaderPos = 1;
        var duration = 400;
        var pause = false;

        $('#imrp_ill0 img').after('<img id="irmbRPicImg">');
        $('#imrp_ill0 img').eq(1).hide();
        $('#imrp_ill0 img')[1].src = randomPict[1]['thumb'];
        $('#imrp_ill0 img').css('position', 'absolute');

        $('#imrp_ill0').hover(function() { pause = true; },function() { pause = false; });

        function doRotate()
        {
            if ($('#imrp_ill0 img')[1].complete)
            {
                if(!pause)
                {
                    $('#imrp_ill0 img').first().fadeOut(duration, function() {
                        nextFaderPos = (nextFaderPos + 1) % randomPict.length;
                        $('#imrp_ill0 img')[1].src = randomPict[nextFaderPos]['thumb'];
                        });
                    $('#imrp_ill0 img').first().insertAfter($('#imrp_ill0 img').eq(1)); // swap
                    $('#imrp_ill0 img').first().fadeIn(duration);
                    setTimeout(function() {
                        $('#imrp_ill0 a').attr("href", randomPict[nextFaderPos]['link']);
                        }, duration/3);
                }
            }
        }

        var rotate = setInterval(doRotate, MRP_delay);
    }
});