Object.extend = function(destination, source) {
  for (var property in source) {
    destination[property] = source[property];
  }
  return destination;
}
Object.copy = function(object){return Object.extend({}, object);}
$extend=Object.extend;
function $() {
  var elements = new Array();
  for (var i=0;i<arguments.length;i++) {
    var element=arguments[i];
    if (typeof element == 'string') element=document.getElementById(element);
    if (arguments.length == 1) return element;
    elements.push(element);
  }
  return elements;
}