I would like the output of
$children = wp_list_pages("title_li=&child_of=".$post->ID."&echo=1");
to look like
<ul>
<li id="1" class="page_item page-item-182 current_page_item"><a href="#">Child 1</a></li>
<li id="2" class="page_item page-item-190"><a href="#">Child 2</a></li>
</ul>
note that I want to add my own "id=$count"