var fDesc=new Array();
fDesc[0] = "The Omnigraph graph processor is an indispensible tool for pupils of all ages. The software enables you to draw lines like y = x 1 either by typing the equation or by just clicking the screen. Graphs and shapes can be transformed and manipulated on screen.";

function tShowHide(id, show)
{
	var s = document.getElementById("desc");

	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
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			document.getElementById('m1').style.display='none';
		if (document.getElementById('m2'))
			document.getElementById('m2').style.display='none';
		if (document.getElementById('more_txt'))
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	else
	{
		s.innerHTML = '';
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}