var yyyy,mm,dd,HH,MM,SS;
var date = new Date();

var src = [];
src['xmass']   = 'くりすます';
src['newyear'] = 'しょうがつ';
src['nomal']   = 'のーまる';

yyyy = date.getYear();
if(yyyy < 1900) { yyyy += 1900; }

mm = ((mm = date.getMonth() +1) > 9) ? mm + "" : "0" + mm;
dd = ((dd = date.getDate())     > 9) ? dd + "" : "0" + dd;
HH = ((HH = date.getHours())    > 9) ? HH + "" : "0" + HH;
MM = ((MM = date.getMinutes())  > 9) ? MM + "" : "0" + MM;
SS = ((SS = date.getSeconds())  > 9) ? SS + "" : "0" + SS;

var now = (yyyy+mm+dd+HH+MM+SS);

var select = (now >= "20071224000000" && now <= "20071225235959") ? 'xmass'
           : (now >= "20080101000000" && now <= "20080103235959") ? 'newyear'
           : 'nomal'
           ;

document.write(src[select]);