Repeater with separator for ASP.NET MVC

Today I needed to repeat over a list of items in my views, separating each item with some html. A simple foreach is no good in this case. I really liked Phil Haack's code-based repeater syntax, but it handles only alternating items, not separators. I didn't need the alternating items, so I just wrote this extension with separator support:

public static class HtmlHelperRepeatExtensions {
    private static Func<T, U> ActionToFunc<T, U>(Action<T> a) {
        return t => {
            a(t);
            return default(U);
        };
    }

    private static Func<T> ActionToFunc<T>(Action a) {
        return () => {
            a();
            return default(T);
        };
    }

    public static void Repeat<T>(this HtmlHelper html, IEnumerable<T> items, Action<T> render, Action separator) {
        var frender = ActionToFunc<T, int>(render);
        var fseparator = ActionToFunc<int>(separator);
        items.Select<T, Func<int>>(e => () => frender(e)).Intersperse(fseparator).Select(f => f()).ToArray();
    }

    // From http://blogs.msdn.com/wesdyer/archive/2007/03/09/extending-the-world.aspx
    private static IEnumerable<T> Intersperse<T>(this IEnumerable<T> sequence, T value) {
        bool first = true;
        foreach (var item in sequence) {
            if (first)
                first = false;
            else
                yield return value;
            yield return item;
        }
    }
}

Sample usage:

<% Html.Repeat(Model.Products, p => { %> 
    <div><%= p.Id%></div>
    <div><%= p.Name%></div>
<%}, () => { %> 
    <br /> <%-- separator --%>
<% }); %>

It's worth mentioning that I had to convert the rendering Actions into Funcs in order to write this in a functional style... in F# this would definitely look prettier :-)