I have looked at this and the only code i can see that points to this is the following code:
<!-- Nav Bar -->
<div class="navbar">
<div class="container">
<a class="btn btn-navbar" data-toggle="collapse" data-target=".navbar-responsive-collapse"><?php echo $text_categories_nav ;?></a>
<?php if ($categories) { ?>
<div class="nav-collapse collapse navbar-responsive-collapse">
<ul class="nav">
<?php foreach ($categories as $category) { ?>
<?php if ($category['children']) { ?>
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown"><img src="<?php echo $category['thumb']; ?>" alt="" /> <?php echo $category['name']; ?> <b class="caret"></b></a>
<?php for ($i = 0; $i < count($category['children'])

{ ?>
<ul class="dropdown-menu">
<?php $j = $i + ceil(count($category['children']) / $category['column']); ?>
<?php for (; $i < $j; $i++) { ?>
<?php if (isset($category['children'][$i])) { ?>
<li class="dropdown-submenu">
<?php if(count($category['children'][$i]['children_level2'])>0) {?>
<a tabindex="-1" href="<?php echo $category['children'][$i]['href']; ?>"><img class="pull-left" src="<?php echo $category['children'][$i]['thumb']; ?>" alt="" /> <?php echo $category['children'][$i]['name']; ?>
<span><?php echo $category['children'][$i]['description']; ?></span></a>
<?php } else { ?>
<a href="<?php echo $category['children'][$i]['href']; ?>"><img class="pull-left" src="<?php echo $category['children'][$i]['thumb']; ?>" alt="" /> <?php echo $category['children'][$i]['name']; ?>
<span><?php echo $category['children'][$i]['description']; ?></span></a>
<?php } ?>
<?php if ($category['children'][$i]['children_level2']) { ?>
<ul class="dropdown-menu">
<?php for ($wi = 0; $wi < count($category['children'][$i]['children_level2']); $wi++) { ?>
<li>
<?php if(count($category['children'][$i]['children_level2'][$wi]['children_level3'])>0){ ?>
<a href="<?php echo $category['children'][$i]['children_level2'][$wi]['href']; ?>"><img class="pull-left" src="<?php echo $category['children'][$i]['children_level2'][$wi]['thumb']; ?>" alt="" /> <?php echo $category['children'][$i]['children_level2'][$wi]['name']; ?>
<span><?php echo $category['children'][$i]['children_level2'][$wi]['description']; ?></span></a>
<?php } else { ?>
<a href="<?php echo $category['children'][$i]['children_level2'][$wi]['href']; ?>"><img class="pull-left" src="<?php echo $category['children'][$i]['children_level2'][$wi]['thumb']; ?>" alt="" /> <?php echo $category['children'][$i]['children_level2'][$wi]['name']; ?>
<span><?php echo $category['children'][$i]['children_level2'][$wi]['description']; ?></span></a>
<?php } ?>
<?php if ($category['children'][$i]['children_level2'][$wi]['children_level3']) { ?>
<ul class="dropdown-menu">
<?php for ($wid = 0; $wid < count($category['children'][$i]['children_level2'][$wi]['children_level3']); $wid++) { ?>
<li>
<a href="<?php echo $category['children'][$i]['children_level2'][$wid]['children_level3']['href']; ?>" ><?php echo $category['children'][$i]['children_level2'][$wi]['children_level3'][$wid]['name']; ?></a>
</li>
<?php } ?>
</ul>
<?php } ?>
</li>
<?php } ?>
</ul>
<?php } ?>
</li>
<?php } ?>
<?php } ?>
</ul>
<?php } ?>
</li>
<?php } else {?>
<li><a href="<?php echo $category['href']; ?>"><img src="<?php echo $category['thumb']; ?>" alt="" /> <?php echo $category['name']; ?></a></li>
<?php } ?>
<?php } ?>
</ul>
</div>
<?php } ?>
</div>
</div>
</div>
<div id="container" class="container-fluid">
<?php if ($error) { ?>
<div class="warning"><?php echo $error ?><img src="catalog/view/theme/ewall/image/close.png" alt="" class="close" /></div>
<?php } ?>
<div id="notification"></div>
<div class="row-fluid">
<ul id="portfolio-filter">
<li><a href="#all"><?php echo $text_show_all; ?></a></li>
<li><a href="#specials"><?php echo $text_show_specials; ?></a></li>
<li><a href="#featured"><?php echo $text_show_featured; ?></a></li>
<li><a href="#latest"><?php echo $text_show_latest; ?></a></li>
</ul>
<?php endif; ?>