function opentree(panel)
{
	var cls = '';
	if (document.getElementById) {
		var el = document.getElementById (panel);
		if (el && el.className) {
			el.className = (el.className == 'opened') ? 'closed' : 'opened';
		}
	}
//	if (navigator.appName == 'Microsoft Internet Explorer' && document.documentElement && navigator.userAgent.indexOf ('Opera') == -1) parent.setScrollInIE();
	return false;
}

function switchpanel(panel,classN)
{
	var cls = '';
	if (document.getElementById) {
		var el = document.getElementById (panel);
		if (el && el.className) {
			el.className = classN;
		}
	}
//	if (navigator.appName == 'Microsoft Internet Explorer' && document.documentElement && navigator.userAgent.indexOf ('Opera') == -1) parent.setScrollInIE();
	return false;
}