John Travolta's brother Joey thought Jett had autism

Joeytravolta According to the London Mirror, there have been many Travolta family arguments caused by Jett Travolta's illness.

The source, a close friend of John's brother, Joey Travolta, told the Mirror that Joey and John often argued about what was wrong with John's son Jett.

John didn't believe his condition was autism, a condition not recognized by Scientology. Brother Joey believed Jett suffered from autism.

Ironically, John's brother Joey had learned a lot about the disorder when he interviewed 65 autistic youngsters for a documentary called "Normal People Scare Me." He even co-wrote the theme song, "Locked Inside of Me."

The award-winning documentary taught people about autism, which can cause violent seizures. Joey also formed the group Actors for Autism, which helps autism sufferers make films about their lives and experiences. 

According to Hollywood Elsewhere, John and his wife Kelly Preston did not attend a 2006 autism event, Cure Autism Now, at which his Joey's documentary was screened.

The friend told the Mirror: "Joey could see Jett in every one of those 65 kids he spoke to (for the film.) It was so obvious Jett was autistic just from spending five minutes with him, but the cruel fact of their religion meant his parents simply did not accept it."

Click here to see a video of Jett with his family, shot in Paris just a few weeks ago.

John and Kelly have long denied suggestions that Jett had autism, saying instead that he suffered from seizures brought on by Kawasaki Syndrome.

According to the Telegraph, some health experts say there is no link between Kawasaki and seizures. However, it's reportedly common for sufferers of autism to have seizures if they are left untreated.

Autism is often associated with epilepsy. Nearly half of autistic children in the U.S. are prescribed anti-convulsion drugs. About a third develop epilepsy. Many suffer from seizures that can begin in adolescence.

And, according to many experts, there are dozens of drugs designed to help, beyond the one Jett was reportedly forced to discontinue because it stopped working.

This is getting more and more confusing. What do you make of all this?

Keep reading to see a video of Joey at the Travolta Film Camp for Autistic kids and Joey at a reading on World Autism Awareness Day on April 2, 2008.

Photo: Joey Travolta in 2004. WireImage