function newImage(year,month,day){
update = new Date(year,month-1,day);
now = new Date();
period = (now-update)/(1000*60*60*24);
if(period <=7){
document.write("<img src='http://www.enishi.biz/gif/new.gif' width='29' height='10' border='0' alt='new' style='margin:0 5px 0 0;' />");
}
}