function windowOpener(url, name, args) {
    if (typeof(popupWin) != "object"){
        popupWin = window.open(url,name,args);
    } else {
        if (!popupWin.closed){
            popupWin.location.href = url;
        } else {
            popupWin = window.open(url, name,args);
        }
    }
    popupWin.focus();                                                                                                         }

function enviarForm(){
    windowOpener('/clientes2/mipais/olvidoPassword.html?login='+document.autenticar.id.value,'ventana','directories=no,scrollbars=yes,resizable=yes,width=548,height=370');
}