MEL & ROBIN'S TEA DATE

Booze-fighters MEL GIBSON and ROBIN WILLIAMS just made a mutual moral support pact - swearing to tough it out together, say sources. In a one-hour phone call placed from the rehab center he'd checked into after falling off the wagon, Robin told Mel, his co-star in the 1997 flick "Fathers' Day," that they can whip their demons if they stand strong together - and Mel promised Robin that when they're clean, they'll celebrate with "a strong cup of tea"...his treat!