arnogues

var nbChiffres = 16;

var f = function() {
  var cells = ("0123456789"+new Array(nbChiffres-9).join(' '))
  .split('').sort(function(a,b) {
    return Math.random()-0.5;
  });
  
  $('.keyboard').html('<button>' + cells.join('</button><button> ') + '</button>');
}