(Note: The change caused by this menu option is only 
visible by opening another hypertext file or by using 
a jump link to another file.)

The "Use Generic Image" menu option sets a flag
which is used by the OnAssert....Image  
method of the THyperTextParser component. 
This method is used to override processing of 
images detected by the parser. In this case, it
replaces any image sent to it with an internally
stored "generic" bitmap. (This could be used to
allow quicker display of inline images.)

(Note: Assert methods normally are used to abort
all further processing of an action, while the
Handle Methods modify the processing. These
two methods can each be overridden in code by
direct assignment for Assert types and virtual
overriding for Handle types.)

