Say something!

function say()
{
    var a=arguments;
    var x=[a[0],a[1]].map(function(v){return v?v.split("").filter(function(v){return "abcdefghijlkmnopqrstuvwxyz".indexOf(v.toLowerCase())>=0}).join("-"):v});
    return a.length===2?x.join(" "):say.bind(this,a[0]);
}