>>>PDF sucks.  Why on *EARTH* should there be "page breaks" in an electronic
>>>document?

>>Otherwise an index is pretty meaningless.

>No, it isn't.  An index refers to section headers.

this has even been done in print: Dixmier, General Topology, Springer-Verlag 
1984

i can't say i like it much in print -- harder to scan paragraph numbers than 
page numbers -- but of course a digital document really ought to produce 
whatever crossreferencing is best for the medium ... who said XML? that's the 
stuff.