var fDesc=new Array();
fDesc[0] = "ElectroBall is an electric circuit simulation program for teaching at KS3 and KS4. It features a variety of simple circuits and shows movement of electrons around a circuit. Series and parallel circuits, electrical resistance, energy transfer in circuits, scientific modelling. <br /> <br /> Using ElectroBall alongside other models. In doing so you can teach students how no model can ever show the true nature of reality. Its a learning objective that is equally important to understanding how circuits work.";

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 = '';
	}
}