var $E = function(selector, filter){
  return ($(filter) || document).getElement(selector);
};

var $ES = function(selector, filter){
  return ($(filter) || document).getElements(selector);
};


Number.implement({
  decimalFormat: function(decimals)
  {
    return this.round(decimals).toFixed(decimals);
  }
});

window.$MOO = $;

if(typeof document.id != 'function')
  document.id = $;