Lookup / Index Match

hi,

I am trying to create a formula which would look at the heading column, across at the date, then return the value in the top row.

For example;

Look up values:

Heading: 2
Date: 05/06/2013

Return Value: -1

Heading 0 -1 -2
1 06/09/2012 05/09/2012 04/09/2012
1 06/12/2012 05/12/2012 04/12/2012
1 07/03/2013 06/03/2013 05/03/2013
2 06/06/2013 05/06/2013 04/06/2013
2 06/09/2013 05/09/2013 04/09/2013
2 06/12/2013 05/12/2013 04/12/2013

i have been experimenting with range look ups and Index Match but i cannot find an appropriate solution.

Many thanks,