Session
    
    onMouseOver
onMouseOver Callback
The onMouseOver( ) callback invokes the function registered against this event when the payer's mouse pointer moves over the hosted field in the iFrame.
Usage
PaymentSession.onMouseOver([HostedFieldsRole], function(selector));
Example
PaymentSession.onMouseOver(['card.number', 'card.securityCode'], function(selector) {
    //handle mouse over event
});
Arguments
        HostedFieldsRole
        
        Array
        
    
    An array of field roles for the hosted fields where the event occurred. Valid array of field roles:
card.number
            card.securityCode
            giftCard.number
            giftCard.pin
            ach.bankAccountNumber
            ach.bankAccountHolder
            ach.routingNumber
            
        callbackFunction
        
        Function
        
    The callback function invoked with the selector for the field whose proxy triggered the event.
Return Value
None