Click Event NaviBar

[C# Programming]

Hello Everybody

My Name is leonardo i am from ecuador, i have a navigation bar in my c# application,
in the NaviBar I added two NaviBands, you see in the picture attached.

I want that when I make a click in the police-man picture or in the clock picture (show the picture attached),
the NaviBar will do something like show a message box for example...

Please could you tell me how I will make it?
and could you show me the code-lines or maybe through of pictures that you can made.

Notes:

a) The picture of police-man is in NaviBand1.
B) the picutre of clock is in NaviBand2.

Thanks in advance.

Leonardo Ayala R.

PD: if you can not see the image, please go to the link below:

http://yfrog.com/77navibarj[^ (http://yfrog.com/77navibarj)]