JqueryUI Slider Control Not Rendering

[GisMo]

Hey All, 

I'm taking a stab at some custom controls and came across this example here:

http://scarpettagroup.com/using-jquery-ui-filemaker-part-2/

I'm using this slider:

http://jqueryui.com/slider/#steps

It seems simple, but it's not rendering in my webviewer other than the title: "Donation amount ($50 increments):"

Thanks!