Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer, if I can, but first I need to ask a little about the subject of your question, please:
When you say 'click to the corners or in the middle of a side', do you mean 'when you click on any part of the square except its interior ? and are all corners all the same as far as the text file that opens in response, will it be the same text file always, regardless of position of the click ?
Also, do you need the code, or just direction as to the modules that need to be used ?
How soon do you need the part of it that JustAnswer will be doing for you? an E.T.A. in other words.
(I'm sorry - without a deadline, and for other reasons, I cannot work on this question. I have Opted Out in favor of someone whose schedule or expertise is ideally suited to the task. Thanks for your patience... when another Expert takes up the case, you ought to receive a notification email.)