Stir 1 cup boiling water into each flavor of gelatin in separate medium bowls at least 2 minutes until completely dissolved. Stir 3/4 cup of the cold water into red gelatin. Pour into 9 inch square pan. Refrigerate about 45 minutes or until set but not firm (gelatin should stick to finger when touched and should mound).

Meanwhile, stir lemon gelatin gradually into cream cheese in large bowl with wire whisk until smooth. Stir in pineapple with juice. Refrigerate about 45 minutes or until slightly thickened (consistency of unbeaten egg whites). Stir in whipped topping and mayonnaise. Spoon over red gelatin layer in pan. Refrigerate about 30 minutes or until set but not firm (gelatin should stick to finger when touched and should mound).

Meanwhile, stir remaining 3/4 cup cold water into lime gelatin. Refrigerate about 30 minutes or until slightly thickened (consistency of unbeaten egg whites). Spoon over lemon gelatin mixture in pan.

Refrigerate 4 hours or until firm. Unmold. Cut into squares. Garnish as desired. Makes 9 servings.