function toggle( obj )
{
	var el = document.getElementById( obj );
	if ( el.style.display != "none" ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = '';
	}
}

function newWindow( url, name, w, h )
{
 	var t = screen.height / 2 - ( h / 2 );
 	var l = screen.width / 2 - ( w / 2 );
 	var features = "toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no,width=" + w + ",height=" + h + ",top=" + t + ",left=" + l;
 
	oWindow = window.open( url, name, features );
	oWindow.moveTo( screen.width / 2 - ( w / 2 ), screen.height / 2 - ( h / 2 ) );
	oWindow.focus();
	return true;
}