Menu Question

[PMB]

Where is get_navigation(return_page_slug()) Is defined ?
My menu requires a span tag to work properly.

Default GetSimple

Code:

<li class="current  index"><a href="http://localhost/mylink/" title="Welcome to My Site">Home</a></li>

What I need

Code:

<li class="current  index"><a href="http://localhost/mylink/" title="Welcome to My Site"><span>Home</span></a></li>

If anyone can guide me to the file where get_navigation is build that would be a huge help

Thanks for any help

[yojoe]

admin/inc/theme_functions.php
line 607: function get_navigation($currentpage)

[PMB]

admin/inc/theme_functions.php
line 607: function get_navigation($currentpage)

Thanks !