jquery in master view:
<pre>
    <script>
        $(".nav li a").click(function(){
            $("#content").get("{{URL::route('about')}}");
        });
</script>

</pre>
route:
<pre>


    Route::get('/about', array(
        'as' => 'about',
        'do' => function(){
           return View::make("about.index");
        }
    ));

</pre>