Hi Walter,
I can see where you're going wrong, so I've made some tweaks to the template in 6.19 to make it a bit easier. However there are still 2 things you will need to note;
1. Each menu needs a unique Menu ID. The reason you're getting the script error is because both your menus have the same ID.
2. Optionally, you can allow the user to change the menu type at runtime. The default settings will change the type of both menus, to the same type, which may not be what you want. So on the Advanced tab of the menu extension, you can give each menu a unique "Runtime Style Setting Word". (clearing this also removes the ability for the user to change the menu type.)
Grab 6.19 when it's out, and make the ID change mentioned in (1) above, and you should be good to go.
cheers
Bruce