Feedback on questions

ok the question has 3 drag objects, the user must drag the correct one (one as in there is only one right answer) into the designated drop zone (which there is only one). the other two serve as distractors. what the clients want to happen is if the user drags one of the distractors into the drop zone, immediatly (not as in time but as in the user doesnt have to do anything to check thier answer and they dont have to wait until after they take the whole quiz to see if they got it right) after a feedback window pops up saying the answer is incorrect (they also want the distractor to go back to its home area after the user closes the window but im only focusing on one problem at a time). If the user happens to drag the correct one into the drop zone they want a window that says they got it correct.currently i have it set up where if a user drags a distractor into the drop zone, they have to click the next button to move to the next question. on that next button i have 3 actions. 2 have a goto action that creates a popup window that states wheater or not the question is right or wrong. But like i said, the clients would like this to happen without the user clicking anything.to address some of your other questions:if the user does not drag anything, they cant go on. The user can only go on if the correct action (they drag the right object into the drop zone) is satisfied.by going on i mean go to the next question (sorry for the confusion but my brain shuts off around noon... my sandwich meat must have gone bad or something)and in case i havent made it clear above, upon the user dragging the correct object into the drop zone i want a window to pop up saying the answer is correct, and then the user can move onto the next question. Upon incorrect i want a window to say the answer is incorrect and for the user to be able to try again.-- hopefully this is enough information to give you an idea if there is a way to acheive the desired results. if not, just let me know. Thanks for all your help, i really apreciate it.