I have designed editable form in Adobe live designer.Here in a button click i am validating some fields as mandatory. So problem is i need to restrict user to restrict ctrl+s key without fill mandatory field. same way i should allow to user to save by File menu also. Is there any way to do. i found this command to restrict user ctrl+s key event.target.dirty = false; i want to know what is use of this command. Thanks in Advance !!