function check_node()
{
	i=0;
	res=true;
	while (res)
	{
		i++;
		if (GetCookie("node"+i))
		{
			res=switchview2("node"+i, 1);
		}else
		{
			res=switchview2("node"+i, 0);
		}
	}
}


function show(layer)
{
	layer.className="class_node_over";
}


function hide(layer)
{
	layer.className="class_node_out";
}


function switchview(layername)
{
	layerobj=document.getElementById(layername);
	if (layerobj)
	{
		if (layerobj.className=="class_node_over")
		{
			hide(layerobj);
			document.images['img'+layername].src="img/close.gif";
			DeleteCookie(layername);
		}else
		{
			show(layerobj);
			document.images['img'+layername].src="img/open.gif";
			SetCookie(layername, layername, null, '/');
		}
	}
}

function switchview2(layername, mode)
{
	layerobj=document.getElementById(layername);
	if (layerobj)
	{
		if (mode==0)
		{
			hide(layerobj);
			document.images['img'+layername].src="img/close.gif";
			DeleteCookie(layername);
		}else
		{
			show(layerobj);
			document.images['img'+layername].src="img/open.gif";
			//SetCookie(layername, layername, null, '/');
			DeleteCookie(layername);
		}

		return true;
	}else
	{
		return false;
	}
}

function switchview3(layername, mode)
{
	layerobj=document.getElementById(layername);
	if (layerobj)
	{
		//alert('ok');
		show(layerobj);
		document.images['img'+layername].src="img/open.gif";
		//SetCookie(layername, layername, null, '/');
		DeleteCookie(layername);

		return true;
	}
}