function flip_galery(){
    var pics = [];
    var active = 0;
    $.each($('#welcomebox .show span'), function(){
        pics.push(this);
    });

    setInterval(function(){
        $(pics[active]).fadeOut('slow');
        active++;
        if(active >= pics.length) active = 0;
        $(pics[active]).fadeIn('slow');
    }, 6000);
}