var fDesc=new Array();
fDesc[0] = "This software package has been designed in order to help beginners in piano read a score and manage to correctly position their fingers on piano keys without taking their eyes off the score they intend to perform.<br /> The principle on which this software package runs is very simple: your computer provides you with a random series of chords on your screen and you are expected to perform them on your midi keyboard.";

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 = '';
	}
}