var g_sm = [];

function toggleMenu(idx)
{
	var id = 'sm_' + idx,
		tr = document.getElementById(id),
		img = document.getElementById(id + '_img'),
		closed = /plus\.gif$/.test(img.src);

	for (var n = 1; ; n++)
	{
		var tr_s = document.getElementById(id + '_' + n);

		if (!tr_s)
			break;

		tr_s.style.display = closed ? '' : 'none';
	}

	img.src = '/design/images/' + (closed ? 'minus.gif' : 'plus.gif');
}