function L2pagetop() {
	var sGpotatoUrl = "http://gpotato.jp";
	var sImageUrl = "http://image.gpotato.jp";
	var sRappelzUrl = "http://rappelz.gpotato.jp";
	var sSecureUrl = "https://secure.gpotato.jp";
	var sBillUrl = "http://bill.gpotato.jp";
		
	var domain = location.hostname;

	if (domain.indexOf("test")!= -1){
		sGpotatoUrl = "http://test.gpotato.jp";
	    sImageUrl = "http://test.image.gpotato.jp";
	    sRappelzUrl = "http://test.rappelz.gpotato.jp";
		sSecureUrl = "https://test.secure.gpotato.jp:444";
	    sBillUrl = "http://test.bill.gpotato.jp";
	}

	document.write('<table width="640" border="0" cellpadding="0" cellspacing="0">\n');
	document.write('<tr>\n');
	document.write('<td><img src="' + sImageUrl + '/gpotato/images/global/spacer.gif" width="1" height="8" alt=""></td>\n');
	document.write('</tr>\n');
	document.write('<tr>\n');
	document.write('<td align="right"><a href="javascript:scrollToTop();"><img src="' + sImageUrl + '/gpotato/images/global/btn_pagetop.gif" width="70" height="20" alt="TOP" border="0"></a></td>\n');
	document.write('</tr>\n');
	document.write('<tr>\n');
	document.write('<td><img src="' + sImageUrl + '/gpotato/images/global/spacer.gif" width="1" height="8" alt=""></td>\n');
	document.write('</tr>\n');
	document.write('</table>\n');

} // L2pagetop()