Range filter in select

I trying to make a working version with a dropdown filter with jplist. I tried a lot off combinations like:

```

Geen voorkeur
300.000
400.000
500.000

```

i checked:

1. http://jplist.com/documentation/control-settings/range-toggle-filter
2. http://jplist.com/documentation/control-usage/range-toggle-filter

But I can't find a working demo, or get it working but in the documentation there stands:

Any HTML element can be used (button, INPUT, SPAN etc.)
Someone an idea?