Which itr form ti be filled itr2 or itr4 ?

I have carry forward Loss from Speculation Business for FY 2011-12, Now in FY 2012-13 I don't have any speculation Income or Loss, to carry forward same loss to FY 2013-14, which ITR should I have to fill (ITR2 or ITR4)?

If I fill ITR2 form, can I carry forward such Sepculation Losses of FY 2011-12 to FY 2013-14 as there is no column given in ITR2 form for carry forward loss from speculation business.

Please reply as soon as possible.