macro to create named ranges based on a header row.

hello, I need a macro that can set up some named ranges using the text in the header row and the sheet name. The header row will always be in row one, but the number of columns will be dynamic. The amount of rows in the range will need to be dynamic also. To clarify, every used cell stating in row 2 in a column will be the named range with the sheetname+text in row one of the column the actual name.

Thanks!
Clayton