function popUp(URL, widthwindow, heightwindow) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=" + widthwindow + ",height=" + heightwindow + ",left = 540,top = 250');");
}