function ShowPage(showid)
{
	// try to initiate transitions on news page
	if (showid == 24)
	{
		colorfade(1, 10);	
	}
	
	var oHorizon = document.getElementById('horizon');
	if (oHorizon.pageID == null)
	{
		id = 22;
		oHorizon.pageID = id;	
	} else { id = oHorizon.pageID; }
	
	document.getElementById('layer_'+id).style.display = 'none';
	document.getElementById('layer_'+showid).style.display = 'block';
	
	oHorizon.pageID = showid;
	
	return true;
}