attach Events using 'handlEvent'

'handlEvent'

      function TA() {
        this.ele = document.querySelector("#message");
        this._attachEvents();
      }

      TA.prototype = {
        _handlers : {
          click : '_clickHandler',
          mousedown : '_mousedownHandler', /* test */
          touchstart: '_touchHandler',/* test */
          keyup : '_keyHandler',/* test */
        },

        _attachEvents : function() {
          this.ele.addEventListener('click', this, false);
        },

        handleEvent : function(e) {
          console.log("handleEvent called : ", e.type);
          var fpHandler = this[this._handlers[e.type]];
          fpHandler.call(this, e);
        },

        _clickHandler : function(e) {
          console.log("clicked!!!", e.type);
        }

      };

      var ta = new TA();