code: function initTabs(){
          var tabs = $G('tabHeads').children;
          for (var i = 0; i < tabs.length; i++) {
              domUtils.on(tabs[i], "click", function (e) {
                  var j, bodyId, target = e.target || e.srcElement;
                  for (j = 0; j < tabs.length; j++) {
                      bodyId = tabs[j].getAttribute('data-content-id');
                      if(tabs[j] == target){
                          domUtils.addClass(tabs[j], 'focus');
                          domUtils.addClass($G(bodyId), 'focus');
                      }else {
                          domUtils.removeClasses(tabs[j], 'focus');
                          domUtils.removeClasses($G(bodyId), 'focus');
                      }
                  }
              });
          }
      }
docs: /* 初始化tab标签