Hi Karen,
As you can see in your data source is missing CustomerID. After adding this element the demo works.
Another difference with loading local data instead server data is the type of data filtering. On server loading is returned json only with elements contained your needed ids. Instead when the source is local, as in your case, you have to filter it on base of the multiple selected values. Then the result will be as is expected.
Here is the final code.
Best Regards,
Ivailo Ivanov
jQWidgets Team
http://www.jqwidgets.com