I am trying to make the buttons work in this simple horizontal flash navbar. I know how I would make this work in AS2 but I am really trying to update myself to AS3 and really having hard time. Basically I have the first layer of navigation working so tat when you click on them a submenu appears underneath. I am having trouble making the sub buttons work. I tried to use same code as on top layer of navigation but I keep getting a null error. For some reason the sub-buttons under the first section "collections" worked, but when I try to do the same thing for the sections I get the error. Any help would greatly be appreciated. I didn't add the other button functions to the code because anytime I tried to add more that's when I got the error.