XSLT Transformation - inserting dynamic form text in header of HTML table

[miamikk]

I am XML newbie.
I have question about inserting dynamic text in the header of HTML table.

This is the site I have created (Only Report Type 1 is working)
http://www.ustrade.fiu.edu/CustomsDistrict_Free.aspx

The headers (Commodity Description, HS4, etc.) are static and I would like to add Month value in the Columns 3-6. Instead of "Year Amount($)", I would like to have the column header as "Month Year Amount ($)".

Right now the "Year" value of column header displays the selected year value. Thats because I have created multiple XSL files corresponding to each year.

Link to XML and XSL file is below:
http://fiu.edu/~atmakurk/XSLT/2007imp-2-4-1.xml
http://fiu.edu/~atmakurk/XSLT/2007-1.xsl

I would appreciate if someone can provide syntax for this.

Thanks