[Javascript] How to change scrollbar color in a multiple select input

[Steve Borruso]

Greetings,

My first time appending.

I haven't been able to alter/control the colors of the scrollbar 
of a <select multiple> form input. Have played with the main 
browser window scrollbar, textarea form inputs, etc. but haven't
been able to do this, or find any doc/examples that do this with 
a multiple select input. 

Any assistance/advice is most appreciated.

Thanks,
Steve