js table背景顏色變化

    <script language="javascript">
    function check(m)
    {
    if (m==1)
    {document.getElementById('table1').style.backgroundColor="red";}
    if (m==2)
    {document.getElementById('table1').style.backgroundColor="green";}
    }
    </script>
    <table><tr><td><a href="javascript:void(0);" onclick="check(1)">1</a></td><td><a href="javascript:void(0);" onclick="check(2)">2</a></td><td>3</td></tr></table>
    <table id="table1"><tr><td height="100">js table背景顏色變化</td></tr></table>