This is a text description of prefs-pa.gif, which shows the Parsers tab of the 
Preferences window. The Parsers tab contains two panels. The left-hand panel shows 
an expandable list of available parsers. The right-hand panel contains the Parser 
Information area, which shows the name, version, and description of the parser 
selected in the left-hand panel. If the selected parser has any variables that 
can be changed, the name and value of the variable appears in the right-hand panel.