var fDesc=new Array();
fDesc[0] = "Graphing Lines is a program that allows you to explore the world of lines. You can investigate the relationships between linear equations, slope, and graphs of lines; graph a line given an equation in either slope-intercept or point-slope form; write an equation in slope-intercept or point-slope form a given graphed line; predict how changing variables in a linear equation will affect the graphed line, and more.";

function tShowHide(id, show)
{
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	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
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		if (document.getElementById('more_txt'))
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	{
		s.innerHTML = '';
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}