Banana Spilt Squares

2 C graham wafer crumbs
1/2 C melted butter
2 C icing sugar
1 C butter
2 eggs
1 t vanilla
1 cn pineapple
4 bananas
1 qt cool whip
chopped nuts

Mix and press graham crackers and 1/2 C butter into 9x13 pan. Bake for 8 min at 350. Beat icing sugar, butter, eggs and vanilla in mixer for 15 min. Spread over crumbs. Drain large can of pineapple and spread over sauce. Cut bananas lengthwise and put on pineapple. Spread whip cream over this and then sprinkle with chopped nuts. Refrigerate all day before serving.