Ext.onReady(function() {


   var btnShow=Ext.get("show-dialog-btn");
   btnShow.on("click",function(){
   	//Ext.Msg.alert("",123);
     var dialog=new  Ext.ux.UploadDialog.Dialog({
                  url: 'UploadFile.aspx',
                  reset_on_hide: false,
                  allow_close_on_upload: true,
                  upload_autostart: true
                });
                
                dialog.show('show-button');
   });
  
  //初始化tree
 // panelDemo.render("demo-panel");    
       
 // panelDemo.show();
 
}); //Ext.onReady