Adding a high score to local storage

Question

I want to add a high score to my game. Right now I have this:

var score = 0;
var highscore = 0;

The score variable works but whenever I get

Answer 1

I just reviewed your code in http://jsfiddle.net/unb8yLj3/ and i couldn't find in what part you increase the score so when this part of code run score is 0 and localStorage.getItem("highscore") is 10 therefore it doesn't set highscore.

if (score > localStorage.getItem("highscore")) {
                localStorage.setItem("highscore", score);

            }

  }

Is there another js file that does increase the score?