(function($) {
  var count=0;
  var Search = function(block) {
    if (block != 'empty') {
      this.callbacks = {};
      block(this);
    }
  }
  
  Search.prototype.all = function(fn) { this.callbacks.all = fn; }
  Search.prototype.reset = function(fn) { this.callbacks.reset = fn; }
  Search.prototype.empty = function(fn) { this.callbacks.empty = fn; }
  Search.prototype.results = function(fn) { this.callbacks.results = fn; }

  function query(selector) {
    if (val = this.val()) {
      return $( selector + ':contains("' + val + '")');;
    } else {
      return false;
    }
  }

  $.fn.search = function search(selector, block) {
    
    var search = new Search(block);
    var callbacks = search.callbacks;

    function perform() {
      if (result = query.call($(this), selector)) {
        callbacks.all && callbacks.all.call(this, result);
        var method = result.size() > 0 ? 'results' : 'empty';
        return callbacks[method] && callbacks[method].call(this, result);
      } else {
        callbacks.all && callbacks.all.call(this, $(selector));
        return callbacks.reset && callbacks.reset.call(this);
      };
    }
    
    /*
    $(this).bind('keypress', perform);
    $(this).bind('keydown', perform);
    $(this).bind('keyup', perform);
    */
    
    $(this).live('keypress', perform);
    $(this).live('keydown', perform);
    $(this).live('keyup', perform);
    
    $(this).bind('blur', perform);
  }
})(jQuery);