td背景變換

    <script language="javascript">
    function showback1(a,b)
    {
    eval('td'+a+'').background="js/"+b+".jpg";
    }
    function shouback11(a,b)
    {
    eval('td'+a+'').background="js/"+b+".jpg";
    }
    </script>
    以下是td調(diào)用
    <td width="100" height="89" valign="bottom" id="td1" background="js/11.jpg" onmouseover="showback1(1,1)" onmouseout="shouback11(1,11)" onclick="window.open('index.asp?id=<%=id%>')">&nbsp;</td>