I have got below panel as an item in another panel.

My issue is how to get the 'checked' radio button from this radio group(face). Any help will be highly appreciated. Cheers


Code:
var faceRating = new Ext.Panel({ 
  height:50,
  width:160,
  //bodyPadding:'0 0 0 20',
  //bodyMargin:'0 0 0 10',
  layout:{
   type:'hbox',
   pack:'justify',
  },
  items:[
         
    {
   
   
   
   xtype:'radiofield',
   
   name:'face',
   
   width:40,
   cls:'radio_rating',
   height:40,
   margin:'0 7 0 7',
   
   
  },
  {
   
   xtype:'radiofield',
   
   name:'face',
    width:40,
    cls:'radio_rating',
    height:40,
    margin:'0 7 0 7',
  },
  {
   
   xtype:'radiofield',
   
   name:'face',
   width:40,
   cls:'radio_rating',
   height:40,
   margin:'0 7 0 7',
  },
  {
   
   xtype:'radiofield',
   
   name:'face',
   width:40,
   cls:'radio_rating',
   height:40,
   margin:'0 7 0 7',
  },
  ],
  


 });