var _actualHeaderBox = 0;

function startHeaderMotion()
{
	if (_headerBoxes > 1)
	{
		setInterval(nextHeaderBox, 10000);
	}
}

function nextHeaderBox()
{
	if (_actualHeaderBox == (_headerBoxes - 1))
	{
		var nextBox = 0;
	}
	else
	{
		var nextBox = _actualHeaderBox + 1;
	}
	
	var actual 	= $('div#header_post_' + _actualHeaderBox);
	var next 	= $('div#header_post_' + nextBox);
	
	actual[0].style.display 	= 'none';
	next[0].style.display 		= 'block';
	
	_actualHeaderBox = nextBox;
}