no, the links are contained in the menu.php file.
you need to edit the link code in the menu.php file manually to add the onclick event.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.