spare parts for ignis 347 dishwasher?

I have ignis 347 dishwasher,on the inside top there is a small rubber(i think)seal that has disintegrated.
The larger seal next to it did the same about 2 years ago
l ordered a new one using the parts number.
The small one is to far gone to get a parts number.
can any one help

john baillie
October 2012