Can anyone point me to a list with definitions of all (or the most popular) functions available in Crystal?  I'm trying to sort a report showing a list of construction projects by job ID (formatted as: ww-xx-yyzzz) using the "yy" fields as the sort record.  Since the ID is a text field, I am assuming that the funcions in the Strings grouping is a good place to start.  Unfortunately, there are MANY choices and I can't figure out how they work (i.e., what does "ToText" do?).  I'm going to training class next week and would like to have some basic knowledge before I begin.  Thanks in advance.