var fDesc=new Array();
fDesc[0] = "VT Explorer is a AIS viewer application which provides a graphic visualiztion of AIS targets into electronic charts. The first version was developed by Astra Paging Ltd. in 2006 and distributed among the custommers of commercial AIS vessel tracking service VT Explorer.";

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 = '';
	}
}