var fDesc=new Array();
fDesc[0] = "NESTOR is an experimental browser that draws navigation-maps while you are surfing the Web.<br /> It promotes &quot;constructivist navigation and learning&quot; through direct manipulation of the map. It is based on research on Web navigation and CSCL and it is being developed through a participatory design process.";

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 = '';
	}
}