SANTA ROSA, Calif. (AP) _ Sonoma County has come up with a plan to make casting a ballot as easy as buying a fast-food burger.

Election officials are opening a drive-through window so motorists can pull up, sign their names and drop off their marked ballots.

The window will shorten the often long lines of early absentee voters filing into the elections office, said Deputy Registrar of Voters Janice Atkinson.

Her idea was approved easily at a recent meeting of the Sonoma County Board of Supervisors despite some doubters.

About 10 percent of the 32,000 absentee voters in the county cast their ballots at the office.

The plan is expected to take effect after the first of the year, when the registrar of voters office moves to a new building in the county government complex.

The new system, including the ''teller's'' window and drive-up ramp, is expected to cost $9,100.