mouse cord retractability

I've about decided to get a corded mouse for my netbook running WinXP SP3,
but I can't tell from the descriptions whether the cords are retractable.
For example, I've looked at the Logitech Optical Notebook Mouse Plus at
Amazon (part no. 931073-0403, ASIN B0001LTT5K), and nowhere does it mention
whether the cord is retractable. I went to the Logitech website and looked
at some other mice and still saw nothing about retractable cords.

Should I assume that if a corded mouse is intended for use with a notebook,
the cord will be retractable? If not, what's a good way to find out? (I live
in a small town, and there's not much available locally.)

Thank you!

Jo-Anne