text: /**
   * a connect four token
   * @constructor C4.Token
   * @param {C4.Player} player the player owning the token
   * @param {Color} color
   */
  C4.Token = function(player, color) {
      this.player = player;
      this.color = color;
      this.domElement = d3.select(document.createElementNS(d3.ns.prefix.svg, 'circle')).node();
  };