pluralize.js

Number.prototype.plural = function(){
  if(this > 1 || this == 0){
    return true;
  } else {
    return false;
  }
}

String.prototype.pluralize_rules = function(){
  return [[new RegExp('$', 'gi'), 's']];
}

String.prototype.pluralize = function(number){
  var str = this;
  if(number.plural()){
    var str = this;
    var rules = this.pluralize_rules();
    for(var r=0; r < rules.length; r++){
      if(str.match(rules[r][0])){
        str = str.replace(rules[r][0], rules[r][1]);
      }
    }
  }
  return str.toString();
}