var timeout    = 500;
var closetimer = 0;
var ddmenuitem = 0;

function jsddm_open() {
    jsddm_canceltimer();
    jsddm_close();
    ddmenuitem = $('#language_select > ul').css('visibility', 'visible');
}

function jsddm_close() {
    if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
}

function jsddm_timer() {
    closetimer = window.setTimeout(jsddm_close, timeout);
}

function jsddm_canceltimer() {
    if(closetimer) {
        window.clearTimeout(closetimer);
        closetimer = null;
    }
}

document.onclick = jsddm_close;