As lawyers for Britney Spears and her ex-husband fought a court battle over custody of their two young sons, a publisher said the pop star's mother is writing a book about parenting.

Religious publisher Thomas Nelson said it will publish ``Pop Culture Mom: A Real Story of Fame and Family in a Tabloid World,'' by Lynne Spears. Nelson spokesman Curt Harding said the book, to be out next spring, will be about Lynne Spears' raising three children and will have a religious element.

Meanwhile lawyers for the pop singer and her ex-husband Kevin Federline were in a Los Angeles court to argue over whether the two have complied with court orders over parenting and, in Spears' case, random drug testing.

Spears, 25, and Federline, 29, split a year ago and for months have waged a custody war over Sean Preston, 2, and Jayden James, 1, as Spears' life slipped out of control.

The pop diva, who rose to stardom on the Disney Channel, has spent time in drug and alcohol rehab, clashed with paparazzi and become the fodder for numerous jokes after being photographed in public without wearing underwear.

On Thursday, a judge dismissed an automobile hit-and-run case against her after she settled with the owner of the car she hit, and she pleaded not guilty to a lesser charge of driving without a license.

But her singing career appears to be rebounding with a recent single, ``Gimme More,'' that is topping digital download charts, and a new album ``Blackout,'' set for release Oct 30.

Still, family Court Commissioner Scott Gordon in recent weeks has yanked visitation rights from Spears only to reinstate them after she complied with his rulings.

Gordon has ordered both parents to seek counseling and hire a parenting coach. He has told Spears she must submit to random drug testing twice a week.

In a morning session on Friday, Gordon ruled that a planned deposition by Spears in the custody case would not be videotaped. Federline' attorney had asked for the taping; Spears' lawyer opposed it. Reuters