function goState(obj) {
    var opt = obj.options[obj.selectedIndex];
    var value = obj.value;
    var citie = opt.title;

    switch (value) {
        case '-':
        case '':
            break;
        case 'DF':
            top.location = '/Cursos-Publicos/Proximos.aspx?en=DF&seminarios-en-mexico-df';
            break;
        case 'GDA':
            top.location = '/Cursos-Publicos/Proximos.aspx?en=GDA&seminarios-en-guadalajara';
            break;
        case 'MTY':
            top.location = '/Cursos-Publicos/Proximos.aspx?en=MTY&seminarios-en-monterrey';
            break;
        default:
            top.location = '/Cursos-En-Su-Ciudad/Estado.aspx?id=' + value + '&seminarios-en-' + citie;
            break;
    }
}