var fDesc=new Array();
fDesc[0] = "Magnets and Electromagnets is a physics simulation tool. As the name suggests, it deals with magnetism. This particular simulation is divided into two tabs: Bar Magnet and Electromagnet. They both deal with the same topic, but present different opportunities to study different things.";

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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			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 = '';
	}
}