function bg_img_resize()
    {
        var w = $(window).width();
        var h = $(window).height();
        var iw = $('#the-background img').attr('width');
    var ih = $('#the-background img').attr('height');
    var rw = iw / ih;
    var rh = ih / iw;
    var sc = h * rw;
    if (sc >= w) {
    nh = h;
    nw = sc;
    } else {
    sc = w * rh;
    nh = sc;
    nw = w;
    }
    $('#the-background img').css({height: nh, width: nw});
    }
    $(document).ready(function(){ bg_img_resize(); });
    $(window).resize(function(){ bg_img_resize(); });