var fDesc=new Array();
fDesc[0] = "Chess Hero is a free chess training tool. The program picks random positions from the PGN files and challenges you to guess the best move computed by a chess engine. And on every attempt you are given a penalty (the difference in score between your move and the engine best).";

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 = '';
	}
}