User talk:Takashichea

JS
I should've fixed up you Common.js, although you need to wait the approval. The code showhide is deprecated, you should use Help:Collapsing.

Since you are struggling to implemente the switch, I should tell you that wikia has implemented his own switch, you can read more about it here. That works only for portable infoboxes so since you are "updating" them you may as well convert them to this format.