Preheat the oven to 350 degrees. Spray a cookie sheet with non stick cooking spray. On a clean counter, Spread out the crescent roll dough into a rectangle. Pinch some of the splits together so it's a solid rectangle sheet. Cut the sheet into 8 squares (four from each half). Spread about a tablespoon of Nutella onto half of one of the squares. Add a tablespoon of strawberries and raspberries. Spoon a teaspoon of jam on top of the berries. Fold the other half of the dough over the filling. Pinch the sides together and use a fork to close the sides. Place evenly on a cookie sheet. Bake for 10-12 minutes, or until golden brown. Don't over cook or the dough will dry out a bit. When out of the oven, drizzle with a little warmed up Nutella over the crescents. Serve with whipped topping if desired.