//Àí²Æ¿ìѶ****************

function showlayer(A,B,C)
{
eval("document.getElementById('cong"+A+"').className='yes'");
eval("document.getElementById('cong"+B+"').className='no'");
eval("document.getElementById('cong"+C+"').className='no'");



eval("document.getElementById('congpage"+A+"').style.display='block'");
eval("document.getElementById('congpage"+B+"').style.display='none'");
eval("document.getElementById('congpage"+C+"').style.display='none'");


}