Hi. Are there any local animal rescue centers near you, they might come and collect it. Try your local phone book or google for rescue centers in your area. For now just keep it warm and if you have a syringe try giving it some water.
Not much help I know, but good luck
If you could keep it (whilst your waiting to do something with it) in a box, somewhere relatively dark and undisturbed, that'll hopefully help stop the poor little thing from dying of shock.