Find out if a fieldset is disabled or not:
var x = document.getElementById("myFieldset").disabled;
Click the button below to find out if the fieldset above is disabled.
<!DOCTYPE html> <html> <body> <form> <fieldset id="myFieldset" disabled> <legend>MyNameFieldset:</legend> Name: <input type="text"><br> Email: <input type="text"><br> Date of birth: <input type="text"> </fieldset> </form>//from ww w. j a va 2 s .c o m <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myFieldset").disabled; document.getElementById("demo").innerHTML = x; } </script> </body> </html>