gistfile1.js

var Snowman = (function(){
  var S = window.S = function(selector){
    return new S.fn.init(selector);
  };

  S.fn = S.prototype = {
    element:  null,
    selector: null,
    init: function(selector){
      this.selector = selector;
      this.element  = document.getElementById(selector);
      // use a real selector engine..

      // really, this only gives us 0 or 1 elements
      this.length   = this.element ? 1 : 0;
    },

    addClass:function(newClass){
      this.element.className += newClass;
      return this;
    },

    removeClass: function(oldClass){
      this.element.className = this.element.className.replace(new Regex(oldClass,'gi'),'');
      return this;
    },

    hide: function(){
      this.element.style.display = "none";
      return this;
    },

    show: function(){
      this.element.style.display = "block";
      return this;
    }
  };

  S.fn.init.prototype = S.fn;

  return S;
})();