ExtJs处置点选按钮事件

items:[ ] 里添加的内容：

{
         xtype:'radiogroup',
         name:'lwzzInfoVO.type',
         fieldLabel:'类别',
         id:'type',
         items:[{
             boxLabel:'论文',
          inputValue:'01',
          name:'type',
          checked:true
             },{
          boxLabel:'著作',
          inputValue:'02',
          name:'type'
                }],
                listeners: {"change": function() { 
            if (Ext.getCmp("type").getValue().type == "01"){
                              //alert("论文，没有出版社");
                                 Ext.getCmp("kwmc").setVisible(true);
                                 Ext.getCmp("cbs").setVisible(false);
                             } else {
                              //alert("著作，没有发表刊物");
                                 Ext.getCmp("cbs").setVisible(true); 
                                 Ext.getCmp("kwmc").setVisible(false);
                                  } 
                                } 
                          }
        }