chat.js

Messages = new Meteor.Collection('messages');

if (Meteor.is_client) {
  Template.messages.messages = function(){
    return Messages.find({}, { sort: { time: -1 }});
  }

  Template.entryfield.events = {
    "keydown #message": function(event){
      if(event.which == 13){
        // Submit the form
        var name = document.getElementById('name');
        var message = document.getElementById('message');

        if(name.value != '' && message.value != ''){
          Messages.insert({
            name: name.value,
            message: message.value,
            time: Date.now()
          });

          name.value = '';
          message.value = '';
        }
      }
    }
  }
}