[jQuery] traversing question

[jQuery] traversing question


hello!
i have this (sample) html:
<ul id="menu1" class="mainmenu">
<li><a href="#" class="strataTrigger">item1</a></li>
<li><a href="#" class="strataTrigger">item2</a></li>
<li><a href="#" class="strataTrigger">item3</a></li>
</ul>
<ul id="menu2" class="mainmenu">
<li><a href="#" class="strataTrigger">item1</a></li>
<li><a href="#" class="strataTrigger">item2</a></li>
<li><a href="# class="strataTrigger"">item3</a></li>
</ul>
when one clicks on an anchor, i need to get the index of that anchor
's LI inside it UL.
i managed to do it like this, and i would like to know if there is an
easier/smarter way to do it. Knowing jquery, there must be!!
        $('.strataTrigger').bind('click',function(){
            var $thisMenu = $(this).parents('.mainmenu');
            $thisMenu.css({backgroundColor: 'red'});
            var $thisMenuItems = $('li', $thisMenu);
            var $thisItem = $(this).parent().get(0);
            var index = $thisMenuItems.index($thisItem);
            console.log("index="+index);
            return false;
        });
thanks for your feedback!
alexandre