var fDesc=new Array();
fDesc[0] = "Compass and Ruler (C.a.R.) is a dynamic geometry software developed by Rene Grothmann since 1989.<br /> Rene Grothmann, mathematic&#039;s teacher at the catholic university of Eichst&auml;tt (Germany), made for his software powerful and reliable algorithms to manage geometrical objects and relations between them : this makes it possible to draw very complex geometrical constructions. For the graphical interface, Rene also did a very great work concerning the interaction between geometric objects and user, what also makes it possible to use C.a.R. with young pupils in primary schools.<br /> CaRMetal is based on C.a.R. : it includes all of its functionalities - or almost - but follows a different approach from the graphical interface point of view. It&#039;s not just a different design - which would not make sense - but instead it gives another way to reach functionalities.";

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 = '';
	}
}