var fDesc=new Array();
fDesc[0] = "MemPot for Windows is developed as an interactive teaching program that simulates the measurement of membrane potentials on excitable cells. It was designed to show students how resting membrane potentials and action potential peaks depend on [K] and [Na] concentrations and on their relative permeabilities.";

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 = '';
	}
}