var fDesc=new Array();
fDesc[0] = "Anybody who has ever worked with microphones in a live situtation knows the feedback problem, especially when using wedgemonitoring on loud states.<br /> To help this situation, often a 32 band equalizer is used. This equalizer is used to reduce the frequencies where feedback occurs. The location of the feedbackfrequency is often done by ear. <br /> This program helps you to improve your skill in locating the feedback frequencies.";

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 = '';
	}
}