text: Ext.application({
      requires: ['Ext.container.Viewport' ],
      name : 'extjs',
      controllers : ['monitores'],
  
      launch: function () {
  
          Ext.create('Ext.container.Viewport',
          {
              layout : 'anchor',
              items : [{
                  xtype: 'monitoresGrid'
              }]
          });
      }
  });
  