nl_tokens: Execute a callback function in a particular scope . If no function is passed the call is ignored .
pl_tokens: function ( callback , scope , args , delay ) { if ( Ext . isFunction ( callback ) ) { args = args || [ ] ; scope = scope || window ; if ( delay ) { Ext . defer ( <mask> , delay , scope , args ) ; } else { callback . apply ( scope , args ) ; } } }