How can i add statusbar to TreeLoader?

[Zanisimo]

I want to add a simple status message in status bar when i click on folder and tree loads its children. Also i would like to add mask too.

I think that there is a easy solution, bet i can't google it.

[Condor]

Put a Ext.Toolbar.TextItem on the toolbar:

bbar: [{
  xtype: 'tbtext',
  id: 'mymessage'
}]

And change it's text:

Ext.getCmp('mymessage').setText('Status: Done');

Masking:

tree.getEl().mask('Please wait...');
...
tree.getEl().unmask();