<tr align="center" class="list_L01" style='background-color: <%#(Container.ItemIndex%2==0)?"#FFFFF;":"#fcf3f4"%>' onmouseover="change_colorOver(this)" onmouseout="change_colorOut(this)"></tr>

<input type="hidden" id="colorName" value="1" /> //隐藏域定义
function change_colorOver(e) {
var oldColor = e.style.backgroundColor;
document.getElementById("colorName").value = oldColor;
e.style.backgroundColor = "#b9bace";
}
function change_colorOut(e) {
e.style.backgroundColor = document.getElementById("colorName").value;
}