Dropdown menu item

gistfile1.html

<script>
$(function(){
  $(window).resize(function(){
		if ($(window).width() < 768)
		{
			$('.account-li').text('').append('<span class="glyphicon glyphicon-cog"></span> Account');
		}
		else
		{
			$('.account-li').text('').append('<span class="glyphicon glyphicon-cog"></span>');
		}
	});
});
</script>

<li class="dropdown">
	<a href="#" class="dropdown-toggle account-li" data-toggle="dropdown"><span class="glyphicon glyphicon-cog"></span></a>
		<ul class="dropdown-menu">
				<li><a href="#"><span class="glyphicon glyphicon-user"></span> Settings</a></li>
				<li><a href="user.php?action=logout"><span class="glyphicon glyphicon-log-out"></span> Logout</a></li>
		</ul>
</li>