Combination Chemotherapy and Radiation Therapy Plus Surgery in Treating Patients With Advanced Cancer of the Pancreas

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Giving the drugs in different ways, such as directly into the abdomen, and combining chemotherapy with radiation therapy may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of combining chemotherapy with radiation therapy plus surgery in treating patients who have advanced cancer of the pancreas.