How to run multiple lines of javascript on the server?

I'm trying to use the following code with jade

extends ../display

- var mProximoAtendimento = moment(), tempoAtraso;
- if (model.ProximoAtendimento) {
-   mProximoAtendimento = moment(model.ProximoAtendimento, "YYYYMMDDHHmmss");
-   if (model.ProximoAtendimento.isValid() && moment().toDate() > model.ProximoAtendimento.toDate())
-      tempoAtraso = mDate.fromNow();
- }

block content
    .page-header
        h1= model.Nome
            |  
            small= model.Titulo

    - if (tempoAtraso)
        #{tempoAtraso}
    - else
        | #{mProximoAtendimento.fromNow()}

But the error is displayed:

500 TypeError: /var/lib/stickshift/XXXX/app-root/data/544682/views/contatos/detalhes.jade:19 17| #{tempoAtraso} 18| - else > 19| | #{mProximoAtendimento.fromNow()} Cannot call method 'fromNow' of undefined

Value in model.ProximoAtendimento is 2013-06-29 09:58:55