var fDesc=new Array();
fDesc[0] = "RP Fiber Calculator is a program designed for performing various calculations on optical fibers with radially symmetric refractive index profiles. You can define the radial refractive index profiles, get the properties of the guided modes calculated and define a Gaussian laser beam.";

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 = '';
	}
}