var fDesc=new Array();
fDesc[0] = "Mars Previewer II is a handy tool for the amateur Mars observer. It was born as a observational aid for my own Mars observations. As it was growing, I realized it was really useful for me, and decided to post it in the Internet. It was on the 1997 opposition. <br /> It&#039;s a program which given the date, time and timezone of the observer will calculate Mars Physical Ephemeris and draw an image of the globe.";

function tShowHide(id, show)
{
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	{
		s.innerHTML = fDesc[id];
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}