readOnly
tags property: TEXTAREA, INPUT (type = button, checkbox, file, hidden, password, text) . Specifies a prohibition on changing the content of the object.

1. to set the ban in the tag
readOnly =
2. to clear the ban in the tag, delete the word READONLY.
3. to set from script
object.readOnly = true
4. to cancel the ban from the script
object.readOnly = false