Ext.Ajax.on('beforerequest', this.showSpinner, this);\r
Ext.Ajax.on('requestcomplete', this.hideSpinner, this);\r
Ext.Ajax.on('requestexception', this.hideSpinner, this);\r
Ext.Ajax.on('beforerequest', this.showSpinner, this);\r
Ext.Ajax.on('requestcomplete', this.hideSpinner, this);\r
Ext.Ajax.on('requestexception', this.hideSpinner, this);\r