var fDesc=new Array();
fDesc[0] = "Pictogram is an application that progressively teaches children the use of charts for representing data. Pictures are dragged onto stacks and may either be displayed vertically or horizontally. The chart can be switched to a block chart where the pictures are replaced as more abstract blocks of different colours. Finally the blocks can be joined into one long bar to create the familiar bar chart.";

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 = '';
	}
}