By JANIE McCAULEY
AP Sports Writer

SAN FRANCISCO(AP) -- Alex Smith threw crisp passes all afternoon.
San Francisco's defense got to the quarterback and forced
fumbles. The 49ers finally produced the kind of mistake-free
performance on both sides of the ball coach Mike Singletary has
been waiting to see from his team.

Smith completed short touchdown passes to Frank Gore and Vernon
Davis in his best game yet this season, highlighting an
all-around sound day for San Francisco in a 20-3 victory over
the Jacksonville Jaguars on Sunday.

For a team that began the season with plans of being defined by
the run, the 49ers are suddenly opening things up with Smith
behind center. Five receivers had four or more catches.

"It's pretty much the growth of this offense," Smith said. "In
the NFL, you have to be balanced. You have to be able to do it
different ways to find ways to win."

Joe Nedney kicked field goals of 46 and 27 yards for the Niners
(5-6), who snapped the Jaguars' three-game winning streak and
spoiled the Bay Area homecoming of Jacksonville coach Jack Del
Rio and running back Maurice Jones-Drew.

The Jaguars' loss clinched the AFC South title for the unbeaten
Indianapolis Colts, who rallied to win at Houston earlier
Sunday.

Jones-Drew, a prep star at powerhouse De La Salle High School on
the other side of San Francisco Bay, ran for 75 yards to become
a 1,000-yard rusher for the first time in his career. He is only
the second player in franchise history to do it, joining Fred
Taylor's seven such efforts. Jones-Drew had his streak of five
straight games with a TD run snapped.

San Francisco's defense came up with two fumble recoveries off
second-half sacks, including Parys Haralson's hit on David
Garrard early in the fourth quarter for a 20-yard loss.

Smith threw for 232 yards with no interceptions and no sacks in
his best game since taking over as starter in late October. Gore
had seven catches, Josh Morgan and Davis six each and four
apiece from Delanie Walker and Michael Crabtree.

"The absolute best thing that happened this week was I saw
leadership on the offensive side of the ball," Singletary said.
"In terms of: 'Coach, this is what I think would work. This is
what I think we need. Can we do this? Can we do more spread? Can
we put it on us, the receivers?"'

He credited Davis, Smith and even Crabtree - the rookie top
draft pick - for offering their input.

Josh Scobee kicked a 32-yard field goal for the Jaguars (6-5),
but also missed wide left on a 40-yard try early in the second
quarter and his 21-yarder in the fourth hit the left upright. He
made a disgusted face afterward. The second miss matched the
shortest in the NFL this season. The Giants' Lawrence Tynes also
failed on a 21-yarder in Week 3 against Tampa Bay, according to
STATS LLC.

"The short one was unacceptable, plain and simple," Scobee said.
"I take full responsibility for it. I am a professional."

What is it about these West Coast woes for Jacksonville? The
Jaguars lost 41-0 at Seattle on Oct. 11 and never threatened
Sunday. This marked the second time in franchise history - also
in 2004 - the team played two road games out West.

Garrard completed six of his first seven passes but had little
to show for it. Jacksonville managed only six first downs in the
first half but wound up outgaining the Niners 357-284. Torry
Holt made a reception for the 164th consecutive game and passed
Andre Reed to move into 10th place on the career list for yards
receiving at 13,226.

For the 49ers, this was just the kind of methodical win
Singletary has insisted his team can produce.

San Francisco had lost five of six since a promising 3-1 start,
the last four of those defeats by seven or fewer points.
Singletary and his players acknowledge they've regularly beaten
themselves.

"We have emphasized that during the week, not beating ourselves"
Haralson said.

Smith threw 29 times in the first half, a career high for a
half, and his 18 attempts tied his most. His heads-up
decision-making had to make Singletary happy.

Smith connected with Crabtree for a 27-yard pass play on
third-and-10 from the 36 midway through the second quarter,
getting the 49ers in the red zone for the first time.

Morgan then made a 6-yard reception to set up Davis' 3-yard TD
catch two plays later - the ninth of the season for the tight
end.

Smith faked right, turned to his left and found a wide-open
Davis in the left corner of the end zone.

Davis also had a 30-yard catch on fourth-and-1 late in the first
half.

NOTES: Jones-Drew, who expected several hundred fans in the
stands at Candlestick Park to support him, was held below 100
yards for the second straight game. He ran for 66 yards in a win
over Buffalo last Sunday. "It's real tough," he said. "I hadn't
seen these people in so long, and to come out here and really
not do anything, it's frustrating." ... Gore ran for 33 of San
Francisco's 52 yards on the ground.