rustyc

I’m still working on mine, but I think I’ve got something along what you need.
Mine is simply creating a menu structure, but I don’t know if wordpress has a way to test for current page (I thought I saw something somewhere along those lines), otherwise use of CSS and Javascript should allow you to hide or display.

This code does display children only under their appropriate parents. I haven’t yet tested grandchildren, but that should/would be just a matter of duplicating the $children = get_pages and the subsequent conditional statement (placing the duplicated code inside the current children conditional statement / foreach loop).

<ul>
	<?php
	    $include_page_ids = array('3','5','7','9','19','11','13'); //also the order of appearance
	    for ($i = 0;$i < count($include_page_ids);$i++) {
		$args = array('title_li'=>'','include' => $include_page_ids[$i]);
		wp_list_pages( $args );
		echo "<span class='zp-delimit'>|</span>";

		$children = get_pages('child_of='.$include_page_ids[$i]);
 		if (count($children) > 0) {
		    $sub = "<ul class='childul'>";
		    foreach ($children as $child){
			$sub .= "<li><a href='".get_page_link($child->ID)."'>";
			$sub .= $child->post_title;
			$sub .= "</a></li>";
		    }
		    $sub .="</ul>";
		    echo $sub;
		}

	    }
	?>
</ul>