I'm just starting learning how this works. I don't have much experience in PHP so I did not see how this worked. Could somebody please explain a little bit to me for example if I want to add something when the user click the "Ask the question" button on Ask Page, where should I add my own code? And also, I didn 't quite understand how (where) the source generated the HTML page (Since I only found .php and .js which contain functions mostly). Thanks !