var util = {

  configEvents : function() {

    if (document.addEventListener) {

        this.addEvent = function(el, type, func, capture) {
          el.addEventListener(type, func, capture);
        };

        this.stopBubble = function(evt) { evt.stopPropagation(); };

        this.stopDefault = function(evt) { evt.preventDefault(); };

        this.findTarget = function(evt, targetNode, container) {
          var currentNode = evt.target;
          while (currentNode && currentNode !== container) {
            if (currentNode.nodeName.toLowerCase() === targetNode) {
                return currentNode; break;
            }
            else { currentNode = currentNode.parentNode; }
          };
          return false;
        };

    }

    else if (document.attachEvent) {

        this.addEvent = function(el, type, func) {
          el["e" + type + func] = func;
          el[type + func] = function() { el["e" + type + func] (window.event); };
          el.attachEvent("on" + type, el[type + func]);
        };

        this.stopBubble = function(evt) { evt.cancelBubble = true; };

        this.stopDefault = function(evt) { evt.returnValue = false; };

        this.findTarget = function(evt, targetNode, container) {
          var currentNode = evt.srcElement;
          while (currentNode && currentNode !== container) {
            if (currentNode.nodeName.toLowerCase() === targetNode) {
                return currentNode; break;
            }
            else { currentNode = currentNode.parentNode; }
          };
          return false;
        };
    }
  }

};