WSForm.subscribe method
Description
Use WSForm.subscribe to subscribe to form events.
Syntax
WSForm.subscribe(eventName, eventHandler,
               callbackFn)
Parameters
This table describes the method parameters.
| Name | Type | Description | 
|---|---|---|
| eventName | String | Specify the name of a form event to subscribe to. | 
| eventHandler | Function | Optionally, specify this function to call when the specified event is generated on the form. This function is called with the name of the event as the only parameter. | 
| callbackFn | Function | Optionally, specify this function to call when the subscription has been initialized. |