RC5: shift + page-up odd file selection behaviour.

[lawndart]

Example: Using a directory with pictures numbered 1-20.
1. From browser mode, select 10.
2. View picutures in sequence with page-down key to 18.
3. Return to browser. 18 is highlighted as expected.
4. Shift + pageup (or home) to select files for deletion.
5. *Files 10 towards 1 are selected. It should be 18 toward
1 selected. Its should start where session left off at the
highlighted file instead of the where the session begain
which is not highlighted when returning to browser.

[xnview]

Example: Using a directory with pictures numbered 1-20.
1. From browser mode, select 10.
2. View picutures in sequence with page-down key to 18.
3. Return to browser. 18 is highlighted as expected.
4. Shift + pageup (or home) to select files for deletion.
5. *Files 10 towards 1 are selected. It should be 18 toward
1 selected. Its should start where session left off at the
highlighted file instead of the where the session begain
which is not highlighted when returning to browser.

Ok, right a