function $get(id)
{
    return document.getElementById(id);
}

function $addHandler(element, eventName, handler)
{
    if (element == null || eventName == null || eventName == '' || handler == null)
        return;

    var browserHandler;
    if (element.addEventListener) //FireFox
    {
        browserHandler = function(e) {
            return handler.call(element, e);
        }
        element.addEventListener(eventName, browserHandler, false);
    }
    else if (element.attachEvent) //IE
    {
        browserHandler = function() {
            return handler.call(element, window.event);
        }
        element.attachEvent('on' + eventName, browserHandler);
    }
}