var fDesc=new Array();
fDesc[0] = "STUDENT Aviation Calculator FREE is an excellent simulator program that allows the user to check all the common variables involved. The most important ones are: FUEL (lbs, kg, US Gal, IMP Gal, liters), DISTANCE (ft, m, km, Sm, Nm), SPEED (fpm, mps, kmh, mph, knots) and many others.";

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 = '';
	}
}