var fDesc=new Array();
fDesc[0] = "EUKLID DynaGeo is a Windows program about geometry. It lets you create dynamic drawings i.e. drawings that allow to move (some) objects without losing the interdependences of the geometrical objects established during the preceeding construction: <br /> &middot; a perpendicular bisector will always stay a perpendicular bisector, <br /> &middot; a line segment joining the points A and B will always run from A to B <br /> &middot; a parallel line will always stay parallel, <br /> &middot; ..... <br /> For example, if you have correctly constructed the circle through the three points of a triangle, then this circle will always run through these 3 points, no matter how you drag the edges of the triangle!";

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 = '';
	}
}