jQuery only animates first two imageflips?!

jQuery only animates first two imageflips?!

I need an imageflip to fadeIn() and fadeOut() on a Joomla 2.5.19 site. I animated the fadeIn() and the `imageflip` with jQuery. Strange things are happening on my Joomla site. 

The template comes with jQuery, nevertheless I installed jQuery Easy jQuery Easy since there are several jQuery versions loaded in the template (dont know why). 
Strangely, the fadeIn() and fadeOut() effect works on two mapped areas in my imagemap (far on the right, the green and the blue one which are highlighted MySite), but not on the others.
Testing the imageflip on my computer, offline, it donly works for the same two areas. BUT, testing it in JSFiddle, it works JsFiddle (in order to get the imageflip, turn switch from "Pure JS" on the left hand side to a jQuery version).

I guess, something must be messed up with the jQuery?! But then again, why do two fadeIn() and fadeOut() work on my site and on my computer, but not the others?!