function pva(l) {
	var scr = window.screen ?
		"&width=" + screen.width + "&height=" + screen.height + "&color=" + screen.colorDepth :
		"&width=1&height=1&color=1";
	var dir =
		l.host == "sum.creasus.net" || l.host == "awa.creasus.net" ? "sum" :
		l.host == "members.ytv.home.ne.jp" ? "yumeshima" :
		l.host == "park.zero.ad.jp" ? "zero" :
		"";
	if (dir)
		document.write("<img src='http://sum.creasus.net/sys/pva/" + dir + "/?referrer=" + top.document.referrer + scr + "' width='1' height='1' border='0' alt=''>");

	if (document.cookie.match(/blis=([^;]+)/))
		top.location.replace("./404.html");

} pva(location);