var fDesc=new Array();
fDesc[0] = "You can print picture of target on the standard A4 paper and put this picture of target in front of standard web camera. Afterwards you can shot to this target with laser beam<br /> so the camera will see laser point on the paper, determine it&#039;s place and report to you how accurate you are.";

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

	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
		if (document.getElementById('m1'))
			document.getElementById('m1').style.display='none';
		if (document.getElementById('m2'))
			document.getElementById('m2').style.display='none';
		if (document.getElementById('more_txt'))
			document.getElementById('more_txt').style.display='inline';
	}
	else
	{
		s.innerHTML = '';
	}
}