I need help on making three layered jello with condensed milk in the middle?

I didn't get many ingredients but what I have is a 3 oz. pk of lime jello, a 3 oz pk of cherry jello, two 3 oz. pk of unflavored gelatin, and a can of condensed milk. Can someone give me a recipe to make layered jello? It'd be REALLY nice! Thanks. :D