function display_date(date,flg){

if(date==undefined){

	date = new Date();

	date = date.getFullYear() +"/"+ (date.getMonth()+1);

}

	

	switch(date) {

		case "day":

			document.getElementById("contents01").style.display = "block";

			document.getElementById("contents02").style.display = "none";

			document.getElementById("day").src="/urawa/stay/view/images/tab_day_on.gif";

			document.getElementById("night").src="/urawa/stay/view/images/tab_night_off.gif";

			break;

		case "night":

			document.getElementById("contents01").style.display = "none";

			document.getElementById("contents02").style.display = "block";

			document.getElementById("day").src="/urawa/stay/view/images/tab_day_off.gif";

			document.getElementById("night").src="/urawa/stay/view/images/tab_night_on.gif";

			break;

			

		case "day02":

			document.getElementById("contents03").style.display = "block";

			document.getElementById("contents04").style.display = "none";

			document.getElementById("day2").src="/urawa/stay/view/images/tab_day_on.gif";

			document.getElementById("night2").src="/urawa/stay/view/images/tab_night_off.gif";			

			break;

			

		case "night02":

			document.getElementById("contents03").style.display = "none";

			document.getElementById("contents04").style.display = "block";

			document.getElementById("day2").src="/urawa/stay/view/images/tab_day_off.gif";

			document.getElementById("night2").src="/urawa/stay/view/images/tab_night_on.gif";		

			break;			





			break;

		default:

			break;

	}

	if(flg!=undefined){

		location.hash=flg;

	}

	return;

}