Supposed Buddhist Scripture Predicting that only through Jesus can Nirvana be reached

http://bibleprobe.com/buddhatoldofjesus.htm Hi, I have been examining the similarities between what Jesus and Buddha taught and I came across this site of the above link in which the author claims that they obtained Buddhist scriptures from Wat Phra Sing in ChaingMai province that predict the coming of Jesus and show that it is nearly impossible to gain enough merit to enter heaven or Nirvana. I suspect that this is completely faked but I always try to approach these sorts of things with the possibility that my assumptions could be wrong.If someone has any information on this it would be greatly appreciated.