Rice Krispies Bars

1 cup sugar
1 cup white syrup -- (Karo corn syrup)
4 cups Rice Krispies -- up to 6
16 ounces crunchy peanut butter
---topping---
8 ounces milk chocolate chips
16 ounces butterscotch chips
 
Mix sugar and syrup together in saucepan; bring to a boil until sugar is dissolved. Add peanut butter and Rice Krispies.  Stir together. Place in greased 9 x 13 inch pan and set aside.
TOPPING: Melt ingredients over medium heat.  Pour over top of mixture and let cool.