function menu_index(id, count)
{
	clearItems(count);
	
	if(document.getElementById("id_"+id))
		document.getElementById("id_"+id).style.display = 'block';
	if(document.getElementById("content_"+id))
		document.getElementById("content_"+id).style.display = 'block';
	if(document.getElementById("id_a_"+id))
		document.getElementById("id_a_"+id).style.color = '#ffffff';
}

function clearItems(count)
{
	if(document.getElementById("content_index"))
		document.getElementById("content_index").style.display = 'none';
	
	for(i = 0; i < count; i++)
	{
		if(document.getElementById("id_"+i))
			document.getElementById("id_"+i).style.display = 'none';
		if(document.getElementById("content_"+i))
			document.getElementById("content_"+i).style.display = 'none';
		if(document.getElementById("id_a_"+i))
			document.getElementById("id_a_"+i).style.color = '#1592ab';
	}
}