function CheckMailAddress(){
	var path=location.href;
	var dom =location.hostname;
	var file=path.substring(path.indexOf(dom)+dom.length+1,path.length);
	var myArray = file.split("/");
	var str = '';
	for (i=1; i < myArray.length; i++) {
		str += '../';
	}
	if(!file) file = 'index.html';
	document.write('<img src="' + str + '../mail2.cgi?' + file + '" width="1" height="1">');
}