jQuery.fn.enabled = function(enableIt) {
    //sets object(s) to enabled/disabled or returns the enabled state of the first element
    if (enableIt == null || enableIt == undefined) //nothing passed, just return state of first element
    {
        return !($(this).attr("disabled") == "disabled");
    }
    else //setting element(s)
    {
        $(this).each(function(){
            if (enableIt)
            {
                $(this).removeAttr("disabled");
            }
            else
            {
                $(this).attr("disabled", "disabled");
            }
        });
        return this; //keep chain
    }
};