function toogle_additional(obj) {
	var ch_class='adt';
	var find_class='adt-showed';
	//alert(obj.className);
	if (obj.className=='toogle')
		{
			ch_class='adt-showed';
			find_class='adt';
			obj.className='toogle-toogled';
			//alert('ok');
		}
	else obj.className='toogle';

	var nodes = document.getElementsByTagName('tr')
 	for (i = 0; i<nodes.length; i++){
  		if (nodes[i].className == find_class ){
   				nodes[i].className=ch_class;

 		}
	}


}