Problem with Horizontal Sub-Menu using

and

Hello,  In my Web application, In my Site.Master page I have a menu and want to have a horizontal Sub-Menu on click of the menu. Below is my div of navbar.
<div class="navbar navbar-inverse navbar-fixed-top"> <div class="container"> <div class="navbar-header"> &lt;button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"&gt; <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> &lt;/button&gt; <p> &lt;a class="navbar-brand" runat="server" href= ...