var fDesc=new Array();
fDesc[0] = "The IOR Tutorial includes interactive and automatic routines for OR algorithms. This software is a fully integrated companion to your Hillier-Lieberman textbook. It is written in Java2,and therefore is platform independent. It has been designed to be your personal tutor, illustrating and illuminating key concepts in an interactive manner. It also should save you considerable time on your homework by enabling you to focus on concepts while ther computer does the number crunching.";

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 = '';
	}
}