Uncaught TypeError: Cannot read property 'length' of undefined
zjq.setSelectionRange	@	zk.wpd:12083
_rsFocus	@	zk.wpd:14963
zk.Widget.zk.$extends.replaceWidget	@	zk.wpd:15837
zAu.cmd1.outer.w	@	zk.wpd:20278
mtAU	@	zk.wpd:18520
zk.copy.zkx	@	zk.wpd:18680
zk.copy.zkx_	@	zk.wpd:18696
zAu.cmd1.outer	@	zk.wpd:20276
doProcess	@	zk.wpd:19292
doCmdsNow	@	zk.wpd:19532
zAu._doCmds	@	zk.wpd:19780
afterResponse	@	zk.wpd:19424
onResponseReady	@	zk.wpd:19421

<script type="text/javascript" defer="true"><![CDATA[
 var _xChosenbox = {};
 zk.override(zkmax.inp.Chosenbox.prototype, _xChosenbox, {
bind_: function() {
_xChosenbox.bind_.apply(this, arguments);
zWatch.listen({onResponse: this});
},
unbind_: function() {
zWatch.unlisten({onResponse: this});
_xChosenbox.unbind_.apply(this, arguments);
},
_doEnterPressed: function () {
_xChosenbox._doEnterPressed.apply(this, arguments);
this._shallRestoreFocus = zk.currentFocus == this;
zk.currentFocus = null;
},
replaceWidget: function(newwgt) {
if (this._shallRestoreFocus) {
newwgt._shallRestoreFocus = true;
}
_xChosenbox.replaceWidget.apply(this, arguments);
},
onResponse: function() {
console.log('onResponse', this._shallRestoreFocus);
if (this._shallRestoreFocus)
this.$n('inp').focus();
}
 });
 ]]></script>