var fDesc=new Array();
fDesc[0] = "FaceTrackNoIR allows you to track your face using your webcam. Among the trackers are the SM FaceAPI, AIC Inertial Head Tracker and PointTracker (IR-tracker derived from FreeTrack). Movements of the head are registered by a simple web cam: no additional hardware is required.";

function tShowHide(id, show)
{
	var s = document.getElementById("desc");

	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
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		if (document.getElementById('m2'))
			document.getElementById('m2').style.display='none';
		if (document.getElementById('more_txt'))
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	else
	{
		s.innerHTML = '';
	}
}