Google charts localization

Hi there,

I need to show my charts in italian, so I create my custom .js where I've put

Drupal.behaviors.chartLocalization = {
    attach: function (context, settings) {
      // Load Google Charts API.
      google.charts.load('current', {packages: ['corechart', 'gauge'], 'language': 'it'});

    }
  };

But it doesn't overwrite the contrib module

      // Load Google Charts API.
      google.charts.load('current', {packages: ['corechart', 'gauge']});

I think it will be usefull to add a new localization option in Chart Settings page in order to allow admin user to change it.
I offer my help to implement this feature, meanwhile is there a quick workaround to solve my issue?

Thanks.