My Ipad is not charging and not syncing !!!!!!!!!!!

Yesterday and while my ipad's battery was on 25% i decided to charge it i realized that it was not charging i tried to connect it on my imac and it was not appearing under my devices , tried several dock cables no change ,the ipad was working fine with the remaining battery until it was drained , at some point i even tried a restore it didnt help now my battery is drained and i cant do anything with it no way to charge it or sync it no matter what , strange enough when i hook the devide i see the apple logo on the screen but nothing else is happening even if the ipad is turned off hooking brings the apple logo, but thats it . Now i am stucked since last night on a cycle of having the empty battery sign on screen and showing the apple logo for a while and back to the battery sign ......in complete desperation .