// workaround because 1 & 2 didn´t work well (...long story ;-))
var optionShow;

window.addEvent('domready', function(){
  
  var idx = 0;
  var tt_news = $_GET["tx_ttnews[tt_news]"];
  
  $$( '.rgaccord2-toggle' ).each(function(item){
    
    if (tt_news == item.id) {
      optionShow = idx;
    }
      
    idx++;
  });
  
  var accordion = new Accordion('.rgaccord2-toggle', '.rgaccord2-content', {
  	show:optionShow,
    alwaysHide:true,
  	opacity: false,
  	onActive: function(toggler, element){
  		toggler.addClass('act');
  	},
   
  	onBackground: function(toggler, element){
  		toggler.removeClass('act');		
  	}
  }, $('rgaccord2-nest'));	

});