onload onmouseover 事件监听

<div class="nav">
    <ul>
        <li>翠翠</li>
        <li>嗯嗯</li>
        <li>小白</li>
        <li>小沫</li>
        <li>同同</li>
    </ul>
</div>

var kkNavArr = new Array('翠翠', '嗯嗯', '小白', '小沫', '同同');
var kkNavEleSet = document.getElementsByClassName("nav")[0].getElementsByTagName("li");
var kkNavEleSetLen = kkNavEleSet.length;
window.onload = function () {
    for (var i = 0; i < kkNavEleSetLen; i++) {
        thisNavEle = kkNavEleSet[i]
        thisNavEle.onmousemove = function () {
            kkgh = kkNavArr.indexOf(this.childNodes[0].nodeValue)
            don(kkgh)
        }
    }
}