[Perlfect-search] Form METHOD=POST instead of GET

[Maninder, Singh]

>>You would need to make that link a form, too, so that the "next" isn't a 
link but a <input type="submit"> button. I'm not sure if that's possible 
without changes to search.pl.

How many changes would we need to make?
Is this something that you can give me some tips on?