function set_arrow(wsk)
{
	wsk.style.backgroundImage = "url('../images/template/arrow.png')";
}

function unset_arrow(wsk)
{
	wsk.style.backgroundImage = "";
}


function high(td)
{
	td.className = "menu_item_high";
}

function low(td)
{
	td.className = "menu_item";
}

function nextTd(td)
{
	td = td.nextSibling;
	while (td.tagName != "TD")
		td = td.nextSibling;
	return td;
}

function top_menu_high(td)
{
	if (td.className != "")
		td.className = "break_high";
	else
	{
		 nextTd(td).className = "break_high";
	}
}

function top_menu_low(td)
{
	if (td.className != "")
		td.className = "break";
	else
		 nextTd(td).className = "break";
}