TypeError is Null?

Question

This is an error in Firebug I keep seeing.

TypeError: $(\"#gallery-nav-button\") is null
 [Break On This Error]  
$(\'#gallery-nav-button\').addClass(\'anima         


        

Answer 1

I agree with the advice given above, relating to the onload event. https://stackoverflow.com/a/18470043/2115934

A more simple solution (though not necessarily a better one) is to put your script tag just before the closing body tag of the document.