Find out if the second option (index 1) in a drop-down list is disabled:
var x = document.getElementById("pets").options[1].disabled;
Click the button to find out if the second option in the dropdown list is disabled.
<!DOCTYPE html> <html> <body> <select id="pets" size="3"> <option>CSS</option> <option disabled>Java</option> <option>HTML</option> </select>// w w w . j a v a 2 s. c o m <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("pets").options[1].disabled; document.getElementById("demo").innerHTML = x; } </script> </body> </html>