Pumpkin Bars

4 eggs beaten
1 cup salad oil
1 cup brown sugar
1 cup granulated sugar
1 cup pumpkin
1/2 teaspoon salt
2 teaspoon cinnamon
1 teaspoon baking soda
1 teaspoon baking powder
2 cups flour
1 cup raisins (optional)
1/2 chopped nuts (optional)
Mix together, pour into greased cookie sheet with sides, bake 30 minutes.

Frosting:

3 ounce cream cheese, softened
6 tablespoons butter, softened
3/4 lb. powder sugar
1 teaspoon vanilla
1 teaspoon milk (or more if needed)
Mix well, spread on bars.