function abreurl(valor) {
document.location.href=valor;
}

montaform = " <form name='fmodalidades'>";
montaform += "<select name='menu1' onChange='abreurl(this.value)' class='fmodalidades'>";
montaform += "<option value='none'>Otras modalidades</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979950-EI10479,00.html'>Atletismo</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979951-EI10479,00.html'>Bádminton</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979952-EI10479,00.html'>Baloncesto</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979955-EI10479,00.html'>Béisbol</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979958-EI10479,00.html'>Boxeo</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979959-EI10479,00.html'>Canotaje slalom</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979965-EI10479,00.html'>Canotaje velocidad</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979967-EI10479,00.html'>Ciclismo</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979968-EI10479,00.html'>Esgrima</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979969-EI10479,00.html'>Fútbol</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979974-EI10479,00.html'>Gimnasia artística</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979975-EI10479,00.html'>Gimnasia rítmica</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979976-EI10479,00.html'>Gimnasia trampolín</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979982-EI10479,00.html'>Balonmano</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979983-EI10479,00.html'>Hípismo</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979993-EI10479,00.html'>Hóckey sobre césped</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979994-EI10479,00.html'>Judo</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1979999-EI10479,00.html'>Levantamiento de pesas</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980000-EI10479,00.html'>Lucha</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980004-EI10479,00.html'>Natación sincronizada</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980007-EI10479,00.html'>Natación</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980012-EI10479,00.html'>Pentatlón moderno</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980013-EI10479,00.html'>Polo acuático</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980015-EI10479,00.html'>Remo</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980016-EI10479,00.html'>Saltos ornamentales</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980022-EI10479,00.html'>Softbol</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980023-EI10479,00.html'>Taekwondo</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980055-EI10479,00.html'>Tenis</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980059-EI10479,00.html'>Tenis de mesa</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980065-EI10479,00.html'>Tiro con arco</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980086-EI10479,00.html'>Tiro</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980089-EI10479,00.html'>Triatlón</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980090-EI10479,00.html'>Vela</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980091-EI10479,00.html'>Voleibol</option>";
montaform += "<option value='/pekin2008/interna/0,,OI1980092-EI10479,00.html'>Voley de playa</option>";
montaform += "</select>";
montaform += "</form>";

document.write(montaform);