SO http://is.gd/20Fzbq

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css">
<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
<div id="twitterbootstrap">
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
    <div class="container">
        <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
        </a>
        <a class="brand hidden-desktop" href="#">iPolice</a>
       
        <div class="nav-collapse">
            <ul class="nav">
                <li><a class="brand visible-desktop" href="#">iPolice</a></li>
                <li class="divider-vertical"></li>
                <li><a href="#">Home</a></li>
                <li class="divider-vertical"></li>
                <li><a href="Login.aspx">Login</a></li>
                <li class="divider-vertical"></li>
                <li><a href="#">Contact</a></li>
            </ul>
        </div>
    </div>
</div>
</div>
</div>


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CSS

#twitterbootstrap .navbar .nav,
#twitterbootstrap .navbar .nav > li
{
    float:none;
    display:inline-block;
    *display:inline; /* ie7 fix */
    *zoom:1; /* hasLayout ie7 trigger */
    vertical-align: top;
}


#twitterbootstrap .navbar-inner {
    text-align:center;
}