function newImage(year,month,day){
 update = new Date(year,month-1,day);
 now = new Date();
 period = (now-update)/(1000*60*60*24);
 if(period <=3){
  document.write("<img src='http://www.free-bird.co.jp/ValiseProjects/images/ico-new.gif' border=0>");
}
}

function nesageImage(year,month,day){
 update = new Date(year,month-1,day);
 now = new Date();
 period = (now-update)/(1000*60*60*24);
 if(period <=14){
  document.write("<img src='http://www.free-bird.co.jp/ValiseProjects/images/ico-nesage.gif' border=0>");
}
}