var fDesc=new Array();
fDesc[0] = "The full PhET Offline Website Installer package installs a copy of the PhET website onto your computer. Once installed, you do not need to be connected to the Internet to view or run any of the simulations (as long as you have Java, Flash, and a web browser such as Firefox or Internet 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 = '';
	}
}