// blocking()
// Source: www.xs4all.nl/~ppk
var supported = (document.getElementById || document.all);

if (supported)
{
	document.write("<style type='text/css'>");
	document.write(".infor { display:none; }");
	document.write("</style>");

	var max = 7;
	var shown = new Array();
	for (var i=1;i<=max;i++)
	{
		shown[i+1] = false;
	}

}

function blocking(i)
{
	if (!supported)
	{
		alert('This link does not work in your browser.');
		return;
	}
	shown[i] = (shown[i]) ? false : true;
	current = (shown[i]) ? 'block' : 'none';
	if (document.getElementById)
	{
		document.getElementById('nr'+i).style.display = current;
	}
	else if (document.all)
	{
		document.all['number'+i].style.display = current;
	}
}