function popUp(URL) {
	windowWidth = 800;
	windowHeight = 380;
	centerWidth = (window.screen.width - windowWidth) / 2;
    centerHeight = (window.screen.height - windowHeight) / 2;
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=" + windowWidth + ",height=" + windowHeight + ",left=" + centerWidth + ",top=" + centerHeight + "');");
}