Open Browser Window

I have a test site boat-for-sale.co.uk
The (basic) menu has a button:
Sell Your Boat
On Sell-your-boat.php the top image Advertise Free has a behaviour link to /BoatAdsFree/boats_Insert.php

This works OK on my local PC but will not work on the server.
I wonder if anyone can say why this link will not work on the remote server.
Many thanks

John

using Fire Fox with the Fire Bug extension, the error console is reporting the following error:

ReferenceError: MM_openBrWindow is not defined

I dont see anywhere in your page where the MM_openBrWindow() function that is used for the onclick event to open the BoatAdsFree/boats_Insert.php page. Since the function is not defined, the onclick event fails.

I think I forgot the link javascript:;