navigation switch footprint question

http://static.sparkfun.com/images/products/08184-3.jpg

Are those circular bits in the picture going to make contact with the surface of the PCB? Is it ok to have traces (with solder mask) running underneath those circular bits?

Does anybody have one of these and can tell me? Can the staff quickly tell me?

Who is the supplier of this?

Is there no data sheet available?

this is a product on sparkfun, the datasheet is available, and the footprint is available in the sparkfun library. But the datasheet does not mention the circular areas I’m talking about.

are these going to cause problems if traces are underneath

http://imgur.com/BJHcd.png

It depends on whether they will contact the PCB or not. The solder mask should insulate them.

i don’t know whether or not they will contact the PCB, i’m hoping somebody who actually has one can tell me

You should be able to tell from the data sheet. If not you will need to check an actual part.

the problem is that the datasheet does not say anything about those areas