He said he was looking for another internet-related job."There are tons of opportunities out there," he told reporters.

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The details of his software contributions to the FBI are due to be partially released by the court except where their publication could compromise the efficiency of future investigations.

Speaking outside the Los Angeles federal courthouse, Naughton said he had used his experiences to distinguish between fantasists and criminals.

He will be fined more than $20,000 (£12,500) and obliged to register as a convicted sex offender wherever he chooses to live.

He is also banned from entering sex chatrooms and from talking to anybody under the age of 18 unless another adult is present.

The outcome has been far from obvious since Naughton, using the online pseudonym "hotseattle", first encountered FBI Special Agent Bruce Applin in a chatroom called dad&daughtersex.

A computer whizzkid who helped develop Sun Microsystems' Java script, Naughton was a rising star at Disney's Go network who visited child porn sites as secret relief from the stresses of his job."[The programs'] purpose is to protect children from internet paedophiles and it is the view of this court that they would be extremely helpful in doing so," Judge Edward Rafeedie said at the sentencing hearing on Wednesday.Showing obvious respect for Naughton, the judge not only waived prison time - which could have been as much as 15 years under federal law - but also said the defendant would be under no obligation to help the FBI further during his five-year probation period."They saw the case for what it is and the defendant for what he is and what he did." Neither Ritter nor his attorney, Gary Kohlman, commented outside court. Each of the five felony counts carries a maximum sentence of 7 years in prison, but Ritter is likely to get much less under sentencing guidelines.Mr Kohlman acknowledged in his closing argument that jurors were likely to be "troubled and offended" by the graphic chat and video of Ritter that prosecutors played, but said they were required to put aside their personal distaste because "this is not a referendum on whether anybody in the courtroom approves of adult chat rooms".- Your subscription automatically renews for the same amount as your original subscription, unless auto-renew is turned off at least 24 hours before the end of the current subscription period.