jQuery.fn.showHideNode = function(id, action) {
	( action )? j$("#" + id).hide('fast') : j$("#" + id).show('fast');
}

jQuery.fn.getDocHeight = function(){
    return Math.max(
        $(document).height(),
        $(window).height(),
        /* For opera: */
        document.documentElement.clientHeight
    );
};

jQuery.fn.itoa = function(num) {
	return num + '';
}