code: function() {
          var me = this,
              msgEl = me.msgEl,
              t;
  
          if (!msgEl) {
              msgEl = me.msgEl = Ext.DomHelper.append(Ext.getBody(), {
                  cls: me.errorListCls
              }, true);
              msgEl.hide();
              msgEl.on('click', function(e) {
                  t = e.getTarget('li', 10, true);
                  if (t) {
                      Ext.getCmp(t.id.split('x-err-')[1]).focus();
                      me.hideErrors();
                  }
              }, null, {stopEvent: true}); // prevent anchor click navigation
          }
          return msgEl;
      }
docs: private