Frothy Lime Punch

16 cups pineapple juice
4 envelopes lime drink mix
4 cups granulated sugar
2 quarts lime sherbet
2 liters 7-Up or ginger ale
Whole strawberries

Put pineapple juice and lime drink mix into punch bowl. Stir in sugar until dissolved. Spoon sherbet into punch bowl. Add 7-Up slowly. Add a few strawberries and serve.

Makes about 40 cups.