var fDesc=new Array();
fDesc[0] = "PC-HFDL is a Windows based decoder for the ARINC 635-3 HF data-link protocol. It has been designed as a decoder and does not carry out extensive logging or analysis of received information. The program can display Squitter Protocol Data Units, Media Access Protocol Data Units, Link Protocol Data Units, VHF ACARS messages, and more.";

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 = '';
	}
}