var fDesc=new Array();
fDesc[0] = "This program was designed to check the installation and optimize placement of the antenna for your Automatic Identification System (AIS). This program displays received signal, threshold and signal-to-noise ratio (SNR) data for selected AIS targets. The program has been tested with NASA Marine Instrument's AIS Engine using the standard NMEA 0183 interface.";

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 = '';
	}
}