var fDesc=new Array();
fDesc[0] = "Calques 3D is a microworld designed for constructing, observing and manipulating geometrical figures in space.<br /> <br /> It allows an intuitive and adaptable access to environment features.<br /> <br /> Intuitive because it has to be used by students who do not have preparation. <br /> <br /> Adaptable because it has to allow the teacher to decide, with respect to his own pedagogy, which primitives and operations will be made available to the student.";

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 = '';
	}
}