var fDesc=new Array();
fDesc[0] = "Sonar Viewer combines a multi-channel sonar viewer with the display of side-scan sonar over a world base map. The sonar viewer works with sonar logs from Lowrance and Humminbird units, and lets you view any combination of your available sonar channels with smooth playback at speeds of up to 30x. Waypoints can be created and edited in the sonar or map views, and loaded and saved in a variety of file formats.";

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 = '';
	}
}