Diane Frank has joined Eldorado Bank as senior vice president/administration. She will oversee human resources activities, with specific responsibility for productivity and training programs. Frank has more 25 years of banking experience, primarily with First Interstate Bank, where she was senior vice president in charge of human resources. She has also been a consultant in finance and human resources. Eldorado Bank has eight branches in Orange, Riverside and San Bernardino counties. It is a subsidiary of Eldorado Bancorp, Tustin.