[jQuery] Get first element when there are multiple classes

[Dave]

Hi

How do you get the first element when the element got multiple
classes?

<ul id="ulList">
        <li class="liRow">11111</li>
        <li class="liRow liEven">22222</li>
        <li class="liRow">33333</li>
        <li class="liRow liEven">44444</li>
</ul>
<input id="btSave" type="button" value="Save" />

$("#btSave").click(function(event) {
        alert($("#ulList .liRow:first").attr("class"));/* Success */
        alert($("#ulList .liRow .liEven:first").attr("class"));/* Hmm
*/
});

Cheers