The rag doll on each centerpiece at Julie Kornfeld's bat - mitzvah party was donated to JARC. Opposite page: Julie Kornfeld has the seat of honor. HARRY KIRSBAU M STAFF WRITER . igger is better" is an ever-pop- ular bar and bat mitzvah party theme. But two others are- becoming noticeable: getting both young and old to participate and tying in charity. "Lots of families are focusing on the dance floor, with adults and the children together, or doing skits together," said Renee Erlich of Star Trax Event Productions in Southfield. "The mitzvah boy or girl- are also dancing with the Star Trax talent, or incorporating family members or friends in the skit, which - is really making it fun, unique and bringing a lot of energy to the party." Friends and family are also putting together skits as a surprise for the guest of honor, she said. "Our goal is for eireryone to be on the dance floor and have a great time celebrating a child's mitzvah." "Adults tend to sit back, but it's a celebra- tion, and they want everyone to be a part of that," said Leslie Jacobs, a party planner based in Bloomfield Hills. Charity tie-ins are also becoming more prevalent, she said. "Instead of the tradition- NEw TRENDS on page 28C El 3/19 2004 25C