* Custom method which toggles a Ext.Button for the current panel on/off depending on the only argument
*/
toggle: function(on) {
- var btns = this.dockedItems.items[1],
- btn = btns.items.items[1];
+ var btns = this.dockedItems.last(),
+ btn = btns.items.first();
if (btn) {
btn.setDisabled(!on);