Javascript DOM HTML Body handle hash change event
<!DOCTYPE html> <html> <body onhashchange="myFunction(event)"> <button onclick="changePart()">Test</button> <p id="demo"></p> <script> // Using the location.hash property to change the anchor part function changePart() {//from w w w . j a v a2 s .c om location.hash = "part5"; } function myFunction() { document.getElementById("demo").innerHTML = "Previous URL: " + event.oldURL + "<br>New URL: " + event.newURL; } </script> </body> </html>