Session
    
    onBlur
onBlur Callback
The onBlur( ) callback invokes the function registered against this event when the hosted field in the iFrame has lost focus.
Usage
PaymentSession.onBlur([HostedFieldsRole], function(selector));
Example
PaymentSession.onBlur(['cardNumber','securityCode'], function(selector) {
    //handle blur event
});
Arguments
        HostedFieldsRole
        
        Array
        
    
    An array of field roles for the hosted fields where the event occurred. Valid array of field roles:
cardNumber
            securityCode
            
        callbackFunction
        
        Function
        
    The callback function invoked with the selector for the field whose proxy triggered the event.
Return Value
None