Using autocomplete only works on homepage

I am very new to JavaScript, so I don't know  where the problema is,

I have been trying to use an autocomplete search, and I have tried several 2 or 3, and all do the same thing

they work well on the home page index,  but if I try it on the contact or about page, they do not work at all

I would be great for me if it would work on the Layout page, but it only Works on the layout in home page only

I added the javascritp and css reference to the layout only I don't know if have to add it to the other views

I have been putting the

I am using json source

I have triyed these

https://jqueryui.com/autocomplete/#remote-jsonp

http://easyautocomplete.com/examples

http://nicolasbize.com/magicsuggest/