function toMMSS(ms) {
    var tot_secs = Math.ceil(ms / 1000);
    var min = Math.floor(tot_secs / 60);
    tot_secs -= (min * 60);
    var sec = (tot_secs % 60);

    min = min + "";
    sec = sec + "";

    if (min.length == 1) min = "0" + min;
    if (sec.length == 1) sec = "0" + sec;

    return min + ":" + sec;
}

function setVolumeBarValue(val) {
    setProgBarValue($("#volBarContainer"), val, 100);
}

function setProgBarValue(progBarCont, val, max) {
    var innerdiv = progBarCont.find("div.progress");

    if (innerdiv.length == 0) {
        innerdiv = $("<div class='progress'></div>");
        progBarCont.append(innerdiv);
    }
    var width = Math.round(val / max * 100);
    innerdiv.css("width", width + "%");
    progBarCont.find(".text").html(width + " %");
}