I really don't think, you need to refute this. It is like saying adam is a myth from the OT, that was borrowed into the Quran.
Quran is light to mankind confirming much that came to before, the Taurat, zaboor, injeel.
It should not be alarming that something survived, in one form or another, and made it into some apocryphia, with truth and untruth, mixed together. It also not be suprising that people where witness to the miracles of Essa(pbuh).
EDIT: I have included this. Incase you need it.
On The Bible Borrowing Theories Of The Qur'ân: An Authoritative Refutation
Actually, it rather confirms the validity of the Quran even more.
If you read the Quran, or even a translation of it, than you will understand what I mean.
If you have difficulty, I can add more thought into.