hi recently my iphone 3gs has stoped charging whilst switched on and will not conect to my computer at all i have tryed different leads and changed the battery any ideas ?

You can try giving it a reset. Hold down the sleep and home keys, past when you see the red power down slider and until you see the silver apple. Let it reboot and see if htat helps.

But I'd also make an appointment at your local apple store. If you've tried different leads then there may be something wrong with the port on your iPad. And that's something for the pros to check out.