I found in the web tutorial about ajax, I tested code from this site http://tzachsolomon.blogspot.com/2013/02/ajax-first-example-based-on-new-boston.html And it was working fine.
Now I want to move it to laravel, I know how to deal with blades and javascript, but I have no idea where to put php code (in controller?) and how set a route to this. I'm beginner with php/laravel/js , and I don't want to touch jquery.