I have an application which uses a dropdown for one of the fields. After making a choice in this dropdown and setting another field, I query a database and return information to the page. When the page has been reset with the info, I need the dropdown, with its selection set, to be disabled, as the user should not beable to change this at this point, as it is a part of the key. I have tried to use document.getElementById('dropdown').disabled = true but no success. Any ideas? Thanks in advance.