How do I install a webcam without the installation CD?

Ok so this webcam I recieved off ebay did not come with a disk.The webcam has no brand name or anything on it.It is a blue webcam with a clip and silver/grey funnel in the front where the camera is with a silver oddly shaped on at the top.Idk what model it is or anything.Is it possible to install it to my computer? Does anyone know what kind it is?