Asking Users To Confirm If They Wish To Leave The Page

[darko100 1]

Normally you can't compare a server structured programming language with a client side programming scripting language And yes , PHP can only return code (HTML). It can't change nothing. 'Bout JavaScript code you posted , nice. You don't need the form , the onbeforeunload event will work even without it ) And , remember , this code is useful only for services where you post emails or write important text. It's really really annoying to open a website and when you close it to return "Please come back to my site"