In a week of slumping Broadway B.O., “Spider-Man: Turn Off the Dark” knocked top dog “Wicked” out of its accustomed place at the head of the weekly top 10.The not-yet-opened “Spider-Man” pulled in $1,588,514, just $58 more than 7-year-old “Wicked’s” $1,588,456. “Spider-Man” has the advantage of being in the middle of a media-magnet preview period and plays in a larger venue than “Wicked.” Although the Main Stem is past the holiday tourism spike, there were six shows in the frame’s millionaires’ club. Two, however, were on their way out: “In the Heights” ($1,083,254) shuttered Sunday, while “The Merchant of Venice” ($1,114,050) went on a three-week hiatus to accommodate topliner Al Pacino’s film sked. “American Idiot” ($952,123), supported by the thesping stint of Green Day frontman Billie Joe Armstrong, held up well, as did Beatles tribute concert “Rain” ($960,485) and star-driven play “Driving Miss Daisy” ($522,006). January traditionally brings a slew of final curtain calls, and the avalanche that began the prior frame continued last week. “A Little Night Music” ($737,852), “La Bete” ($335,673) and “A Free Man of Color” ($286,415) all closed along with “Heights,” while Brooks Atkinson Theater occupant “Rock of Ages” ($628,628) shut down temporarily before its relaunch at the smaller Helen Hayes Theater on March 24. Overall cume plummeted $14 million to $20.8 million for 27 shows on the boards, with that tally looking likely to diminish further as productions continue to close. Winter slump often hits bottom during late January and early February. This year a new marketing campaign, Broadway Week, aims to boost traffic with ticket deals. Week’s total is ahead of this time last year when B.O. came in at $18.8 million for 29 shows. Attendance, which dropped by almost one-third to 232,314, is ahead of the 227,000 logged in 2010.