Forum:Variable Template based on Viewer input

I have a Template at darkeclipse.wikia.com/wiki/Template:Tribe, but I want it to change based on what a viewer inputs, like through a checkbox. If you then look at darkeclipse.wikia.com/wiki/Tribes, you can see several instances of the template, but they all have extra parameters. If the viewer wishes, I would like them to be able to check a box, etc., and hide some of the attributes in favor of others.

I would imagine that I would us a parser magic word like "if", and have it do stuff based on the status of the checkbox or some other form-like object, but that's just a guess. Is this type of thing even possible?