js 控制div显示

    <script language="javascript" type="text/javascript">    function ShowSearch1()    {           document.getElementById('Search1').style.display ="none";      document.getElementById('Search2').style.display ="block";      document.getElementById('Link1').style.color ="#BFBEBE";      document.getElementById('Link2').style.color ="#990099";      document.getElementById('TxtShowSearch').style.value ="1";     }

   function ShowSearch2()    {     document.getElementById('Search1').style.display ="block";      document.getElementById('Search2').style.display ="none";      document.getElementById('Link1').style.color ="#990099";      document.getElementById('Link2').style.color ="#BFBEBE";      document.getElementById('TxtShowSearch').style.value ="2";     }    </script>