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<!DOCTYPE html> <html> <body> Birthday (month and year): <input type="month" id="myMonth" name="bdaymonth"> <p>Click the buttons to display and/or change the value of the name attribute of the month field.</p> <button onclick="display()">Display name</button> <button onclick="change()">Change name</button> <p><strong>Note:</strong> input elements with type="month" are not supported in Internet Explorer or Firefox.</p> <script> function display() { var x = document.getElementById("myMonth").name; alert("The name of the month field is: " + x); } function change() { var x = document.getElementById("myMonth").name = "newMonthName"; alert ("The name was changed to: " + x); } </script> </body> </html>