anchor.diff:  
   
   
  -    aimobj.add(catalogTree);
  +    //aimobj.add(catalogTree);
       aimobj.add(mygrid);
       aimobj.doLayout();	
   	
  
positive.code:     });
  	//弹出窗口
  	var mywin = new Ext.Window({
          applyTo:'hello-win',
          layout:'fit',
          width:600,
          height:400,
  
negative.code: 		},
  	    //width: 600,
  	    //height: 300,
  	    //frame: true,
  	    title: '目录',
  	    iconCls: 'icon-grid',
  	    bbar : bbar
  