Event dialog > Attachments has no effect on Google calendar?

	As a follow-up to my previous mails, I have just done a little test.

1. I created a *local calendar* in the hard drive.
2. I created an event and added a bogus URL to attachment.
3. I closed the event and opened it again.
Observation: the URL is still present in attachment.

4. I connected to a Google calendar
5. I created an event and added a bogus URL to attachment.
6. I closed the event and opened it again.
Observation: the URL has disappeared!

	Is that because Google calendar does not support "attachment" for some 
reason?  Standard?  Or is this a bug?

	Cheers