var fDesc=new Array();
fDesc[0] = "Involute is a free tool designed to calculate inspection data for a set of mating gear. <br /> Involute is very easy to use:<br /> - Select the gear type by clicking the appropriate gear type option (External or Internal). <br /> Selecting External allows you to calculate gear data for an external pinion and gear set.<br /> Selecting Internal allows you to calculate gear data for an external pinion and an internal gear.<br /> - Type in the appropriate gear data for each input box. To navigate to each input box use your <br /> mouse or use the &quot;Enter&quot;, &quot;Tab&quot; or up and down arrow keys.<br /> - Click on the &quot;Calculate&quot; button using your mouse.";

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 = '';
	}
}