function OpenTimetable(jumpURL) {
	var windowW = 1240;
	var windowH = 800;

	if (screen.width < windowW) {
		windowW = screen.width;
	}
	if (screen.height) {
		windowH = screen.height - 100;
	}
	if (!jumpURL) {
		jumpURL = "tokyo0807.html";
	}
	var windowL = (screen.width - windowW) * 0.5;

	var openPARM = "";
	openPARM += ",scrollbars=yes";
	openPARM += ",resizable=yes";
	openPARM += ",toolbar=no";
	openPARM += ",menubar=no";

	window.open(jumpURL,'','width=' + windowW + ',height=' + windowH + ',left=' + windowL + ',top=0' + openPARM);
}