* @return {Array} The results of invoking the method on each item in the array.
*/
invoke : function(arr, methodName){
var ret = [],
args = Array.prototype.slice.call(arguments, 2);
Ext.each(arr, function(v,i) {
* @return {Array} The results of invoking the method on each item in the array.
*/
invoke : function(arr, methodName){
var ret = [],
args = Array.prototype.slice.call(arguments, 2);
Ext.each(arr, function(v,i) {