var _tabs_playlista = new Array('panel1_playlista', 'panel2_playlista', 'panel3_playlista', 'panel4_playlista');
var _tab_playlista = new Array('tab1_playlista', 'tab2_playlista', 'tab3_playlista', 'tab4_playlista');
var _active_playlista = null;

function switchTab_playlista(tab, name)
{
/*
	if (_active_playlista) {
		_active_playlista.className = "tab"
	}
	else {
		// na sztywno, chyba że można użyć onload.
		document.getElementById('tab1_playlista').className = "tab";
	}
*/

	for(i = 0; i < _tab_playlista.length; i++) {
		_obj = document.getElementById(_tab_playlista[i]);
		_obj.className = (tab == _tab_playlista[i]) ? 'tab active':'tab';
	}

	_active_playlista = tab;
	_active_playlista.className = "tab active";

	for(i = 0; i < _tabs_playlista.length; i++) {
		_obj = document.getElementById(_tabs_playlista[i]);
		_obj.style.display = (name == _tabs_playlista[i]) ? 'block':'none';
	}
	return false;
}