Robware/Controller/Navigation/BlogNav.php

<?php
class BlogNav implements INavigationController{
	private $_uri;
	
	public function __construct() {
		$this->_uri=new URI("Blog","/blog","images/blog.svg");
	}
	
	public function GetItems() {
	}

	public function GetURI() {
		return $this->_uri;
	}
}