From my controller's init method:
	$this->view->addHelperPath('Helpers/', 'horizontal_nav');

in my view script:
	<div id="nav" class="nav">hi<?= $this->horizontal_nav ?></div>

in applications/Helpers/horizontal_nav.php
	class horizontal_nav
	{
	 	public function horizontal_nav($params) {
			return 'This is my navbar'; //or render the view below ! you have to do this yourself !
		}

	}

in applications/views/Helper/horizontal_nav.php
	This is my navbar.