var fDesc=new Array();
fDesc[0] = "Looking for free mathematics software?<br /> <br /> You have come to the right place! Like other math software, our software is designed to do mathematics. What is different is that it helps teachers teach students how to &quot;do&quot; mathematics by presenting math in a visual way. Moreover, it does it in a user-friendly environment that requires no programming knowledge.";

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 = '';
	}
}