random or flipping of section execution within template

[libertate]

I want the code to be kept within the template and not use external code.

I simply one to display two javascripts. It would not loop. Depending on a random state, it should display one or the other. It doesn't even have to be random, it could be ABABABABA i.e. flipping

Is there a template variable that changes at each load time? Time or or something else? Maybe then I can do a simple var div 2 != var / 2 to decide which section to execute.