var fDesc=new Array();
fDesc[0] = "This interactive computer program consists of several circuit analysis activities. Realistic troubleshooting activities are also included involving resistors, capacitors, inductors and transformers.<br /> AC Circuits Challenge consists of a set of fourteen activities to assist instruction of AC circuit analysis and troubleshooting.";

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 = '';
	}
}