兼容FF,IE,Chrome的js离开或刷新页面检测
<!DOCTYPE html> <html> <head> <script> function closeIt() { return "Any string value here forces a dialog box to \n" + "appear before closing the window."; } window.onbeforeunload = closeIt; </script> </head> <body> <a href="http://www.microsoft.com">Click here to navigate to www.microsoft.com</a> </body> </html>
兼容FF,IE,Chrome的js离开或刷新页面检测,关键的部分是要有return.