jquery-event-suffix.js

jQuery.eventSuffix = function(event, suffix){
    if (!suffix){
        return event
    }

    return jQuery.map(event.split(' '), function(i){
        return i ? i + '.' + suffix : null
    }).join(' ')
}

//Usage:
var submitEvent = $.eventSuffix('click keydown', 'myEventNamespace')
$('a').on(submitEvent, submitFunction)
$('a').off(submitEvent)