// Overriding CSS Selector Engine.
Sly.handlers = Selector.handlers;
Sly.prototype.findElements = Sly.prototype.search;
Sly.findElement = function(elements, expression, index) {
  if (Object.isNumber(expression)) {
    index = expression; expression = false;
  }
  return Sly(expression || '*').filter(elements)[index || 0];
};
Sly.findChildElements = function(element, expressions) {
  var result = Sly(expressions.join(',')).search(element);
  return Prototype.BrowserFeatures.ElementExtensions ?
    result : result.filter(Element.extend);
};
Selector = Sly;