onload=function(){
	clock();
	//if(document.getElementById('rank')) rankon(24);
	if(document.getElementById('rank')) rankon(30);
	// プレ期間中は30日
}
function clock(){
	date0 = new Date();
	year = date0.getYear();
	if(year < 1900) year += 1900;
	mon = date0.getMonth() + 1 ;  if (mon<10) {mon="0"+mon};
	week = date0.getDay();
	weekchars = new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday");
	todayweek = weekchars[ week ]; 
	day = date0.getDate();  if (day<10) {day="0"+day};
	hour = date0.getHours();  if (hour<10) {hour="0"+hour};
	minute = date0.getMinutes(); if (minute<10) {minute="0"+minute};
	
	document.getElementById('clk').innerHTML = "<div class='clock'>"+year+"."+mon+"."+day+"</div><div class='clock2'>"+hour+":"+minute+"</div><div class='clock'>"+todayweek+"</div>";
	setTimeout("clock()",1000);
}

/*
function rankon(a){
	document.getElementById('rank').className = "right"+a;
	//if(a==24) document.getElementById('ranking').innerHTML = rank24;
	//else document.getElementById('ranking').innerHTML = rank30;
}
*/

function rankon(a){

	if (a == 24) {

		var rank24 = "";
		var rank30 ="";;
		var osirase='';

		document.getElementById('rank').className = "right24";
		rank24 = document.getElementById("rank24");

		if (rank24 != null) {
			/*rank24.style.display='block';*/
			rank24.style.display='block';

			osirase = document.getElementById("osirase");
			//osirase.style.display='block';

		}

		rank30= document.getElementById("rank30");
		if (rank30 != null) {
			rank30.style.display='none';
		}


	} else {

		var rank24 = "";
		var rank30 ="";;

		document.getElementById('rank').className = "right30";

		rank24 = document.getElementById("rank24");
		if (rank24 != null) {
			rank24.style.display='none';
		}

		rank30= document.getElementById("rank30");
		if (rank30 != null) {
			/*rank30.style.display='block';*/
			rank30.style.display='block';
			osirase = document.getElementById("osirase");
			//osirase.style.display='block';

		}
	}


}