Sliders in webMathematica

Hi everybody,

I want to put a couple of sliders on an interactive application and i would like to know whether the variables i use for the sliders are arrays. Here an example:

{{Volumenstrom, 0}, 0, .99, .01, Appearance → “Labeled”}
{{FroudeZahl2, 0}, 0, .99, .01, Appearance → “Labeled”}

Are volumenstrom and FroudeZahl2 arrays?