I need help with a macro that needs to do the following things:

1. Look at workbook filename.
2. If it is equal to a certain filename, then bring up a message box.
3. Have one button link to the Save As.. function.
4. Have one button to just cancel, and enter the workbook.
5. If the workbook has a different name, then have it just open the workbook
without the messagebox.

Any help would be greatly appreciated.