Question: I have a menu I build with responsive design that works good on browsers except the IE7

any idea why this menu breacks on IE7?

link:
<https://dl.dropbox.com/u/107452929/newtest/CWSMainTitle.htm>

Answer: 
in your DeviceList.h , make sure you have

```
@interface DeviceList : Parent
- (NSString*) getListId;
..
..
@end

```

the warning occurs when your method is not declared in your header file and you try to call it outside your (self) class.
have you added a declaration for this method in the .h file, and if so, have you imported the .h into the file you are trying to call this method?

this error is basically the compiler saying it can't find the method declaration, so it doesn't know what to expect the return type to be.