SAP IDM 8.0 - use of jQuery in scripts

Hi IDM Experts!

Sorry, but this might seem like a very silly question; how does one use jQuery within a script in IDM 8.0; I enabled the "Labs Features" as seen below, but I still can't use jQuery:

When trying to use jquery within an IDM script, I keep getting similar errors:

$ is not defined

or

jQuery is not defined

Would greatly appreciate your help / advice on this! How does one successfully use jQuery within IDM 8.0?

Thanks a ton in advance!

Best regards,

Sandeep