/*
(function($) {
    $.fn.Disposable = function(cln) {
        return this.each(function() {
            var el = this;
            if (!el.dispose) {
                el.dispose = cleanup; // will be called by 
                // Microsoft for cleanup
                $(window).bind("unload", cleanup);
            }
            function cleanup() {
                if (!el)
                    return;
                $(el).unbind();
                $(window).unbind("unload", cleanup);
                el.dispose = null;
                el = null;
            };
        });
    };
})(jQuery);
function usedForCleanup() {
}
Sys.Application.add_load(function() {
    $('input').change(usedForCleanup).Disposable();
});
*/