server.js
=====================================
var app = express.createServer();

app.configure(function(){
  app.use(express.methodOverride());
  app.use(express.bodyParser());
  app.set('view engine', 'html');
  app.register('.html', require('jqtpl'));
});

app.post('/login', function(req, res, next){
  console.dir(req.body);
});

...


login.html
=====================================
<form action="/login" method="post" accept-charset="utf-8">
  <label for="login">Login</label>
  <input type="text" name="[user]login" id="login" value="" />
  <label for="password">Password</label>
  <input type="password" name="[user]password" id="password" value="" />
  <input type="submit" name="submit" value="Log in">
</form>