Phaser - Access custom function from the otuside

[degressor]

Hi, I'm new to pharser. I created several functions like move() in the Game.js

 

TestGame.Game.prototype = {
...
  drawPath: function() {
   ...
  }

Everything is working well. No I would like to access the drawPath function from outside oth the class, e.g. <button onlick="TestGame.Game.drawPath()">  but get "is not a function" Error.

[degressor]

I found a solution on my own. Thx anyway

TestGame.game.state.states['Game'].drawPath()