old_contents: function Message(data){
  	this.id = Number(data.postid);
  
  	this.user = {
  		id: Number(data.userid),
  		name: data.username
  	};
  
  	this.value = data.message;
  	this.posted = new Date(data.posted);
  
  	this.$el = null; //after createDOM() -> div.message
  }
  
  Message.prototype.createDOM = function(){
  
  }
  
new_contents: function Message(data){
  	this.id = Number(data.postid);
  
  	this.user = {
  		id: Number(data.userid),
  		name: data.username
  	};
  
  	this.value = data.message;
  	this.posted = new Date(data.posted);
  
  	this.$el = null; //after createDOM() -> div.message
  }
  
  Message.prototype.createDOM = function(){
  	this.$el = document.createElement('div');
  }
  
subject: Update message.js