Adding style to Header when div is clicked using Javascript
My intent is to add a class to the header when a div is clicked. I have included the website I'm working with, just to make thing's easier:

URL - http://itsmontoya.com/work/iM/

I have added a class 'expanded' to the header. This is to show how the navigation should look after the button has been pressed. I created a simple Javascript which is supposed to provide an alert when I click the button. I can't seem to get this to work. Any ideas of what I did wrong?

Thanks!
Adding style to Header when div is clicked using Javascript
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My intent is to add a class to the header when a div is clicked. I have included the website I'm working with, just to make thing's easier:

URL - http://itsmontoya.com/work/iM/

I have added a class 'expanded' to the header. This is to show how the navigation should look after the button has been pressed. I created a simple Javascript which is supposed to provide an alert when I click the button. I can't seem to get this to work. Any ideas of what I did wrong?

Thanks!