<ul class="dropdown-menu" role="menu">
<li><a href="#" id="theme_slate">Gunmetal gray</a>
<li><a href="#" id="theme_cerulean">White</a>
<ul class="dropdown-menu" role="menu">
<li><a href="#" id="theme_slate">Gunmetal gray</a>
<li><a href="#" id="theme_cerulean">White</a>