Click \'+\' button to open, \'-\' button to close, \'++\' button to open all, \'--\' button to close all.

Clear all selected keywords by closing the tree and opening it again with the \'+\' button.
Alt-click \'+\' re-selects the previously selected keywords.

Alt-click keyword negates the keyword.
"; $langAdvanced = "Advanced"; $langSearch = "Search"; $langSearchCrit = "Use the area below for descriptive words, one word per line!"; $langNoKeywords = "This course has no keywords"; $langKwCacheProblem = "The keyword cache cannot be opened"; $langCourseKwds = "course keywords"; $langKwdsInMD = "keywords used in MD"; $langKwdRefs = "keyword references"; $langNonCourseKwds = "Non-course keywords"; $langKwdsUse = "Course keywords (bold = not used)"; $langTotalMDEs = "Total number of MD entries: "; ?>