function openlesson( aLessonXML, aWindowTitle ) {
var OpenWindow=window.open("", "lessonwin", "height=480,width=640");
OpenWindow.document.write("")
OpenWindow.document.write("")
OpenWindow.document.write("" + aWindowTitle + "")
OpenWindow.document.write("")
OpenWindow.document.write("")
OpenWindow.document.write("")
OpenWindow.document.write("")
OpenWindow.document.write("")
OpenWindow.document.close()
}