it is a workaround. try
<div class="nav-collapse">
<ul class="nav">
<li id="home" class="active"><a href="~/Home/Index">Home</a></li>
<li><a href="#">Project</a></li>
<li><a href="#">Customer</a></li>
<li><a href="#">Staff</a></li>
<li id="demo"><a href="~/Home/demo">Broker</a></li>
<li id='sale'><a href="#">Sale</a></li>
</ul>
</div>
and on each page js add
$(document).ready(function () {
$(".nav li").removeClass("active");//this will remove the active class from
//previously active menu item
$('#home').addClass('active');
//for demo
//$('#demo').addClass('active');
//for sale
//$('#sale').addClass('active');
});