var fDesc=new Array();
fDesc[0] = "Logic Expression is a program that calculates and analyzes the logical (Boolean) expression. The program supports logical operators such as negation, conjunction, disjunction, exclusive disjunction, implication and equivalence. It also has support for up to 500 members of expression, up to 338 variables and n levels of parenthesis.";

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 = '';
	}
}