Add print buttons to Google Reader at the bottom bar (with Previous/Next Item).

The first button prints the content of the selected item. If no item is selected, an error box is shown.

The second button prints all items displayed.

[ v2.1 - 2008-10-09 - Corrected the position problem (reported by Kaveh Dorafshan). And thanks to Jack Braidwood for your code, it's now in the script. ]

[ v2.0 - 2008-05-05 - Updated according Stephen Cronin's hack. The choice between a single item's print and the print of all the items is reported on two buttons instead of one ]