| disabled property | indicate whether the control is disabled as well as to actually disable the control (a disabled control doesn't allow any user input, but gives no visual indication that the control is disabled). |
| form property | a pointer back to the form of which the field is a part. |
| blur() method | causes the form field to lose focus (by shifting the focus elsewhere). |
| focus() method | causes the form field to gain focus (the control is selected for keyboard interaction). |
| blur event | occurs when the field loses focus; the onblur event handler is then executed. |
| focus event | occurs when the field gains focus; the onfocus event handler is then executed. |