Change the name of an <object> element:
document.getElementById("myObject").name = "newObjName";
Click the button to change the name of the object.
<!DOCTYPE html> <html> <body> <object id="myObject" width="100" height="100" data="video.mp4" name="obj1"></object> <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() {/* w w w .ja v a2 s .com*/ document.getElementById("myObject").name = "newObjName"; document.getElementById("demo").innerHTML = "The name of the object was changed"; } </script> </body> </html>