document.write ("<tr><td height='30' valign='bottom' class='sc'><select name='select_country' size='1' class='s1' onchange='switch_select();'><option>select country</option><option>Hong Kong</option><option>Laos</option><option>Singapore</option><option>Thailand</option><option>Vietnam</option></select></td></tr><tr><td height='32' valign='middle' class='sc'><select name='select_city' size='1' class='s1'><option>select city</option></select></td></tr>");