$ sign in Formula with cell referce
 

Hi all, In Range("B1:B5") I have formulas like see below

=A1
=A2
=A3
=A4
=A5

Is there some way or macro in excel that I should select Range
("B1:B5") and click some button or some thing and all the formulas
become like see below

=$A$1
=$A$2
=$A$3
=$A$4
=$A$5

above is just a small example to explain my question but I have
formulas in lots of rows and cloumns and I want them to appear as
shown above in second example. I am looking for some way to just
select the range in which i have the formulas and do some thing or run
some macro which fixes all the cell referces in formula. I hope i was
able to explain my question. Can please any friend help