When you declare a variable using strict datatypes in Actionscript, a dropdown menu appears with a list of them - I want to know more about these datatypes. I've searched google, adobe.com, the flash help files and the forums for some information and I can't seem to find much at all. A lot of websites will mention simple datatypes like string, boolean, integer and number and others will even discuss movieclips and a couple of other types, but I've not managed to find anything on types like 'bind', 'accordian', 'dataglue', 'dataholder' etc.

If anyone could suggest some alternate search terms or provide a link I would be very grateful.