Takes a String like testSlide:33328:testslide desc...:1 or test: gip: 2,
splits on the : and looks for ID in the last String[x], if not found it returns zero, otherwise
it returns a parsed int.
Takes a String like 1: testSlide: 33328:testslide desc etc or 2: test: gip,
splits on the : and looks for ID in the first String[x], if not found it returns zero, otherwise
it returns a parsed int.