Hi,
i used the code present in that page (CODE USED). The user can click all the categories displayed, and i need to know the id of the one that he clicked.
http://s23.postimg.org/eur3jhjor/Immagine.png
In the case of the screenshot i need to know which is the id of the category "Excel", the one that i clicked.
Sorry for my english, i'm italian.