jQuery Filterable Portfolio: not load all <li> items

I'm puzzled on how to work this so not all of the <li> items load on a page refresh. The filtering works fine on each link selection in the <ul> "filter", but on a page reload, all <li> items show, not just the filtered.

Code is from http://net.tutsplus.com/tutorials/javascript-ajax/creating-a-filterable-portfolio-with-jquery/

HTML:

    <div id="container">
    <li>home.com</li>

    <ul id="filter">

            <li><a href="#">books</a></li>
            <li><a href="#">essays</a></li>
            <li><a href="#">film</a></li>

    </ul>

    <ul id="portfolio">

<li class="books"><a href="#"><img src="images/one.gif" alt="" height="120" width="200" />Book One</a></li>
<li class="books"><a href="#"><img src="images/two.gif" alt="" height="120" width="200" />Book Two</a></li>     
<li class="essays"><a href="#"><img src="images/three.gif" alt="" height="120" width="200" />Essay One</a></li>
<li class="essays"><a href="#"><img src="images/four.gif" alt="" height="120" width="200" />Essay Two</a></li>
<li class="film"><a href="#"><img src="images/five.gif" alt="" height="120" width="200" />Film One</a></li>
<li class="film"><a href="#"><img src="images/six.gif" alt="" height="120" width="200" />Film Two</a></li>  

</ul></div>

JS:

$(document).ready(function() {
    $('ul#filter a').click(function() {
        $(this).css('outline','none');
        $('ul#filter .current').removeClass('current');
        $(this).parent().addClass('current');

        var filterVal = $(this).text().toLowerCase().replace(' ','-');

        if(filterVal == 'all') {
            $('ul#portfolio li.hidden').fadeIn('slow').removeClass('hidden');
        } else {

            $('ul#portfolio li').each(function() {
                if(!$(this).hasClass(filterVal)) {
               开发者_开发技巧     $(this).fadeOut('normal').addClass('hidden');
                } else {
                    $(this).fadeIn('slow').removeClass('hidden');
                }
            });
        }
        return false;
    });
});

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You are trying to pass on the filter on a page reload? If yes, you could either pass on the variable in the url, or use cookies.