Broken Glass Dessert

3 small boxes flavored gelatin

4 1/2 c boiling water

1 pkg. unflavored gelatin

1/4 c water

1/4 c orange juice, heated to boiling

8 oz Cool Whip

1 loaf cake, sliced into 1/2" slices

Dissolve each box of flavored gelatin separately in 1 1/2 c boiling water. Pour into separate square pans and chill until firm. Line a 9 x 13" pan with cake slices, filling in gaps. Soften unflavored gelatin in water. Add orange juice and stir until gelatin is completely dissolved. Cool 10 minutes. Cut flavored gelatin into 1/4" cubes. Set aside. Fold orange juice mixture into Cool Whip. Fold in flavored gelatin cubes. Spread over cake slices. Chill until set.