document.write("<form name='abcd'>\n");
document.write("<select name='a'>\n");
document.write("<option value='http://orgullotijuanaglbt.4t.com/index.html'>Principal\n");
document.write("<option value='http://orgullotijuanaglbt.4t.com/whats_new.html'>Lo nuevo\n");
document.write("<option value='http://orgullotijuanaglbt.4t.com/contact.html'>Contáctanos\n");
document.write("<option value='http://orgullotijuanaglbt.4t.com/eventos.html'>Calendario de Eventos\n");
document.write("<option value='http://orgullotijuanaglbt.4t.com/photomem.html'>Fotos\n");
document.write("<option value='http://orgullotijuanaglbt.4t.com/directorio.html'>Directorio\n");
document.write("</select>\n");
document.write("<input type='button' value=' Ir ' onclick='go()'>\n");
document.write("</form>\n");

function go() {
document.location = document.abcd.a.options[document.abcd.a.selectedIndex].value
}