tag = document.getElementById('show_login_top');
tag.innerHTML = " <table width=\"600\" height=\"25\"  border=\"0\" cellpadding=\"0\" cellspacing=\"0\">   <form name=login_form_top action=\"http://passport.didibaba.com/login.shtml?action=login&back=1\" target=_self method=POST>          <tr>            <td width=\"50\" class=\"nav\">用户帐号</td>            <td width=\"100\"><input type=\"text\" name=\"UserName\" class=\"inputbox_ser\" /></td>            <td width=\"50\" class=\"nav\">用户密码</td>            <td width=\"100\"><input type=\"password\" name=\"Password\" class=\"inputbox_ser\" /></td>            <td width=\"40\" class=\"nav\">验证码</td>                    <td width=\"70\"> <input maxlength=\"5\" size=\"5\" name=\"GetCode\" class=\"inputbox_ser2\"  /></td> 			<td width=\"70\"><img src=\"http://passport.didibaba.com/checknum/checknum.shtml\" align=\"absmiddle\"/><INPUT type=hidden name=goto value=\"http://service.didibaba.com\">&nbsp;</td>            <td width=\"60\"><input type=image src=\"/images/btn_login.gif\" width=\"52\" height=\"19\" border=\"0\"></td>            <td><input name=\"online_time\" type=hidden id=\"online_time\" value=1><a href=\"#\"  onClick=\"location.href=\'http://passport.didibaba.com/register.shtml\'\"  ><img src=\"/images/btn_reg.gif\" width=\"52\" height=\"19\" border=\"0\"></a></td>          </tr>		  </form>        </table>";