var fDesc=new Array();
fDesc[0] = "ATCS Monitor allows you to graphically monitor train traffic on railroads that use the Association of American Railroad's Advanced Train Control System (ATCS) Specification 200 protocol, Wabtec (ex-Rockwell Collins) Advanced Railroad Electronics System (ARES) protocol, Union Switch and Signal Genisys protocol, and Safetran Supervisory Control System (SCS-128) protocol. The purpose of this and other ATCS specifications is to define the performance and interface requirements for ATCS hardware and software.";

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 = '';
	}
}