I have'nt tried them, but two scripts (UnFoot + ReFoot) avaible here : http://www.scriptopedia.org/index.php?post/unfoot_refoot_fr.html do something close to what you're looking for.
We just want to convert footnote text as normal text and place the same to the corrsponding reference without deleting footnote number.
This is footnote reference 1
1This is footnote text
The text "1This is footnote text" must go to the above footnote reference without deleting footnote reference number. Any one help me in this regard. . .