disable :: Form.Element

disable(element) -> HTMLElement Disables a form control, effectively preventing its value to be changed until it is enabled again.

his method sets the native disabled property of an element to true. You can use this property to check the state of a control.

Example

See the example in the Form.disable() method, which is basically it.

Notes

Disabled form controls are never serialized.

Never disable a form control as a security measure without having validation for it server-side. A user with minimal experience of JavaScript can enable these fields on your site easily using any browser. Instead, use disabling as a usability enhancement - with it you can indicate that a specific value should not be changed at the time being.

Prototype API 1.5.0 - prototypejs.org