//moo.dom by Valerio Proietti (http://mad4milk.net) MIT Open Source license;
//v 1.5 (beta);

function $S() {
  var elements = [];
  $c(arguments).each(function(sel){
    if (typeof sel == 'string') {
      sel.getElements().each(function(el){
        elements.push(el);
      });
    }
    else elements.push(sel);
  });
  return elements;
}

/*------------------String Prototypes----------------------*/

Object.extend(String.prototype, {
  getElements: function(filter){
    var params = [];
    this.split(' ').each(function(arg, j){
      params[j] = param = [];
      if (arg.indexOf('#') > -1) {
        var bits = arg.split('#');
        param['tag'] = bits[0] || '*';
        param['id'] = bits[1];
      }
      else if (arg.indexOf('.') > -1) {
        var bits = arg.split('.');
        param['tag'] = bits[0] || '*';
        param['class'] = bits[1];
      }
      else param['tag'] = arg;
    });
    var filter = filter || document;
    filter = $c(filter.getElementsByTagName('*'));
    params.each(function(param, k){
      if (param['tag'] != '*' && k == 0) filter = filter.filterByTagName(param['tag']);
      else if (k != 0) filter = filter.getElementsByTagName(param['tag']);
      if (param['id']) filter = filter.filterById(param['id']);
      if (param['class']) filter = filter.filterByClassName(param['class']);
    });
    return filter;
  },

  getElementsBySelector: function(filter){
    if (!filter) filter = null;
    var elements = [];
    this.split(',').each(function(selector){
      elmnts = selector.replace(/^\s*|\s*$/g,"").getElements(filter);
      elmnts.each(function(el){
        elements.push(el);
      });
    });
    return elements;
  }
});


/*----------------------Array Prototypes-----------------------*/

function $c(array){
  var nArray = [];
  for (i=0;el=array[i];i++) nArray.push(el);
  return nArray;
}

Object.extend(Array.prototype, {
  iterate: function(func){
    for(var i=0;ob=this[i];i++) func(ob, i);
  },

  action: function(actions){
    this.each(function(el){
      if (actions.initialize) actions.initialize.apply(el);
      for(action in actions){
        if (action.slice(0,2) == 'on') el[action] = actions[action];
      }
    });
  },

  filterById: function(id){
    var found = [];
    this.each(function(el){
      if (el.id == id) found.push(el);
    });
    return found;
  },

  filterByClassName: function(className){
    var found = [];
    this.each(function(el){
      if (Element.hasClassName(el, className)) found.push(el);
    });
    return found;
  },

  filterByTagName: function(tagName){
    var found = [];
    this.each(function(el){
      if (el.tagName.toLowerCase() == tagName) found.push(el);
    });
    return found;
  },

  getElementsByTagName: function(tagName){
    var found = [];
    this.each(function(el){
      $c(el.getElementsByTagName(tagName)).each(function(tn){
        found.push(tn);
      });
    });
    return found;
  }
});

if(!Array.prototype.each) Array.prototype.each = Array.prototype.iterate;