function changeLang(id) {
    switch (id) {
        case 'btnUs':
            document.cookie = "lang=en;path=/;";
            break;
        case 'btnRu':
            document.cookie = "lang=ru;path=/;";
            break;
        case 'btnRo':
            document.cookie = "lang=ro;path=/;";
            break;
            /*
        case 'btnFr':
            document.cookie = "lang=fr;";
            break;
       case 'btnSp':
            document.cookie = "lang=sp;";
            break;
        case 'btnPt':
            document.cookie = "lang=pt;";
            break;
        case 'btnIt':
            document.cookie = "lang=it;";
            break;
        
        case 'btnDe':
            document.cookie = "lang=de;";
            break;
        case 'btnAr':
            document.cookie = "lang=ar;";
            break;
        case 'btnDe':
            document.cookie = "lang=de;";
            break;
        case 'btnFi':
            document.cookie = "lang=fi;";
            break;
        case 'btnCn':
            document.cookie = "lang=cn;";
            break; */
    }
    self.parent.location.reload(true);
}