This is a client-side Condition which provides a means of specifying the JavaScript function to call.
The following configuration option is available for this Condition:
Function: This is used to specify the JavaScript function to call. As this is a Condition, the JavaScript function must be configured to return a value of either True or False. You can include parameters to pass to the custom JavaScript function in this text box.
Note: Only the value assigned as a return value within the function is returned. If no value is assigned as a return value, this field has a value of “undefined”, which is treated as False.