function openmenu(button,id)
{
	var buttons=button.parentNode.cells;
	for (var xb=0;xb<buttons.length;++xb)
	{
		if (buttons[xb].className=="select")
			buttons[xb].className="unselect";
	}
	button.className="select";
	
	var selected=document.getElementById(id);
	var rows=selected.parentNode.rows;
	for (var xr=0;xr<rows.length;++xr)
	{
		rows[xr].className="closed";
	}
	selected.className="open";
}