Combines functions into callback chain.

composeC()

function compose() {
    function c(fn, next) {
        return function() {
            var args = Array.prototype.slice.call(arguments, 0);
            fn.apply(fn, [next].concat(args));
        }
    }
    var fn = arguments[arguments.length-1];
    for (var f=arguments.length-2; f>=0; f--) {
        fn = c(arguments[f], fn);
    }
    return fn;
}
 
// demo
var x = function(next, a, b, c) {
    a++;
    c--;
    next(a, b, c);
}
var y = function(next, d, e, f) {
    d = '('+d+')';
    e = '('+e+')';
    f = '('+f+')';
    next(d, e, f);
}
var z = function(g, h, i) {
    alert(g+','+h+','+i);
}
var demo = compose(x, y, z);
demo(1, 2, 3); // alerts (2),(2),(2)