any one can explain me how this filter(':first').click() working?
<p>any one can explain me how this filter(':first').click() working? </p>

<pre><code>$(function() {
    var tabContainers = $('div.tabs &gt; div');
    tabContainers.hide().filter(':first').show();
    $('div.tabs ul.tabNavigation a').click(function() {
        tabContainers.hide();
        tabContainers.filter(this.hash).show();
        $('div.tabs ul.tabNavigation a').removeClass('selected');
        $(this).addClass('selected');
        return false;
    }).filter(':first').click();
});
</code></pre>
