How to border row of cells based on content?

Hi!

I have a spreadsheet that is generated from another program. I do not know how many rows there will be. What I would like to do is have a macro that will put borders around all cells in a given row if there is content in that row. Particularly, if there is content in say C4, then border A4 through F4. If content in C5, then border A5 through F5 and so on. I do know that there will be no more than 35 rows of data, but I want to start at row 4 with this marcro.

Make sense? Can you help!

THanks!!!
Lori