function PopupWindow (calName, date, id, source, width, height) {
            newwin = window.open ("http://www.forchheim-online.de/cgi-bin/Calcium38.pl?Op=PopupWindow&Amount=Week&NavType=Relative&Type=Block" +
                               "&CalendarName=" + calName +
                               "&Date=" + date +
                               "&ID=" + id +
                               "&Source=" + source,
                               "PopupWindow" + calName + id,
                               "scrollbars,resizable," +
                               "width=" + width + "," +
                               "height=" + height)
            // assume win.focus works, unless broken msoft browser


    newwin.focus()

}