var adupload_idx = 1;

function adupload_tick() {
    var idx = adupload_idx;

    if (idx < 11) {
        $('div#adupload-throbber div.cell-'+idx).css('background-color', '#22ff22');
    }
    if (idx > 1) {
        $('div#adupload-throbber div.cell-'+(idx-1)).css('background-color', '#88ff88');
    }
    if (idx > 2) {
        $('div#adupload-throbber div.cell-'+(idx-2)).css('background-color', '#ccffcc');
    }
    if (idx > 3) {
        $('div#adupload-throbber div.cell-'+(idx-3)).css('background-color', '#ffffff');
    }
    adupload_idx = (adupload_idx % 13) + 1
    setTimeout(adupload_tick, 200);
}