11. The computer usable non-transitory storage medium of claim 10 , wherein said computer readable program when executed on a computer further causes the computer to change the order of the sequence of next documents in said string.
10. The computer usable non-transitory storage medium of claim 9 , wherein: a plurality of subsequent next documents are selected; and the computer readable program when executed on a computer further causes the computer to create in each subsequent next document a hyperlink to the following subsequent next document in said string.