var MSIE=navigator.userAgent.indexOf("MSIE");
var OPER=navigator.userAgent.indexOf("Opera");

getsGlu = ((MSIE && !OPER) || OPER );

function changediv()
{
document.getElementById('hiddenLayer').style.display = "block";
setTimeout("hidediv()",22000)
}
function hidediv()
{
document.getElementById('hiddenLayer').style.display="none";
SYtag=2;
}
function showfull()
{
setTimeout("changediv()",9000); 
}
//×¢Ê͵ô²»ÏÔʾ¹ã¸æ 
showfull();