//7日以内の場合、newマークを表示
function newmark(tgday){
	document.write("<b>" + tgday + "</b>");
	limdy = -daycount(tgday);
	if(7 >= limdy){
		document.write("<img src='img/new01.gif' border='0'>");
	}
}

//2つの日付の差（日単位）を取得
function daycount(tgtdy){
	ymd = tgtdy.split("/");
	today = (new Date()).getTime();
	tgday = (new Date(ymd[0],ymd[1]-1,ymd[2])).getTime();
	btday =Math.floor((tgday - today) / (24 * 60 * 60 * 1000));
	return btday + 1
}