title: Wordpress Walker_Nav_Menu select children elements in menu based on page id
body: <p>I'm having a hard time working through the <a href="http://phpdoc.wordpress.org/trunk/WordPress/Nav_Menus/Walker_Nav_Menu.html" rel="nofollow">Walker_Nav_Menu docs</a>. I want to have a walker that about puts the children of an element with certain id but i'm not sure exactly where to start.</p>
  
  <p>I did some research but couldn't find anything based off of a Page ID. Does any one have any links or references on how to get this to work?</p>
  
  <p>Thanks for the info</p>