(Sigh) what part of "GEOFF'S COMPUTER IS DOWN" didn't you understand, Richard?  He dictated his response to me over the telephone, and had me read it back to him.

And Islam IS a 'western' religion.  Muslims worship the God of Abraham (AS).  Qur'an refers to that God by many of the same Names/Attributes by which your bible does.  "Eastern" religions are comprised of Buddhism, Hinduism, Shintoism etc.,  and of the three "Abrahamic faiths", Christianity is the one most influenced by eastern religious concepts--particularly Hinduism by way of Mithraism.

"Elah" & "Elohiim" (Hebrew) = "Alah" & "Alaha" (old Aramaic) = "Allah" & "Allahumma" (Arabic) = "Olah" (Swahili) = "Atu'a" (Samoan) = "Dieu" (French) = "El Dio" (Spanish) = "Hotheos" (Greek) = "Khuda" (Farsi) = "Bohkh" (Russian) = "Gott" German = "GOD" (English).

The most ancient writings by the "Christian fathers" (2nd-3rd century) were in Syriac Aramaic and they referred to the Deity as ALLAH.  Arab CHRISTIANS have always done so.