function slideSwitch() {
    var slots = new Array('active1','active2','active3');
    var rn=Math.floor(Math.random()*3);
    var slot = slots[rn];
    var $active = $('#fsfade IMG.'+slot);
    var $passive = $('#fsfade IMG.passive');
    var $arr = jQuery.makeArray($passive);
    var rndNum = Math.floor(Math.random() * $arr.length );
    var $next  = $( $arr[ rndNum ] );

    $active.addClass('last-active');
    $active.animate({opacity: 0.2}, 1500, function() {
    $next.css({opacity: 0.0})
        .removeClass('passive')
        .addClass(slot)
        .animate({opacity: 1.0}, 2000, function() {
            $active.removeAttr('style');
            $active.removeClass(slot+' last-active');
            $active.addClass('passive');
        });
    });
    setTimeout ( "slideSwitch()", 6000 );
}

$(function() {
    setTimeout ( "slideSwitch()", 1000 );
});