function countdown(){
	var point = new Date(2008, 10, 10);
	var now = new Date();
	var days = Math.floor((point-now)/(24*60*60*1000));
	var hours = Math.floor(((point-now)%(24*60*60*1000))/(60*60*1000));
	var minutes = Math.floor(((point-now)%(24*60*60*1000))/(60*1000))%60;
	var seconds = Math.floor(((point-now)%(24*60*60*1000))/1000)%60%60;
	
	if ((point-now)>0) {
		document.c.days.value = days;
		document.c.hours.value = hours;
		document.c.minutes.value = minutes;
		document.c.seconds.value = seconds;
	} else {
		document.c.days.value = "夏祭りプレゼント企画は終了しました。ありがとうございました";
	}
	var tid = setTimeout('countdown()',1000);
}