Stuck for Three Days

Hi there, can anyone give me the file address where this is found: 

<li class="elgg-menu-item-elgg-logo">

<a href="http://www.elgg.org/" class="elgg-topbar-logo">

<img src="http://localhost/sites/elgg-1.8.13/_graphics/elgg_toolbar_logo.gif" alt="Elgg logo"          width="38" height="20">

</a>

</li>