function yosakoi()
{
	var today = new Date();
	var tommorrow = new Date();
	var trd = 86400000;
	yy = today.getFullYear();
	mm = today.getMonth()+1;
	dd = today.getDate();
	if (document.cookie=="")
		document.cookie="Name=Yosakoi,Visit="+yy+"/"+mm+"/"+dd+"; expires='Fri, 30-Sep-2002 23:59:59 GMT'";
}