var fDesc=new Array();
fDesc[0] = "Take a closer look at Mars. In 1609 it was first viewed via telescope by Galileo, and after that lots of astronomers observed this mysterious orb and studied its characteristics. In the end of XX century dozens of spacecraft have been sent to Mars to explore its surface, climate and geology. Now it's your turn to participate in human expedition to Mars.";

function tShowHide(id, show)
{
	var s = document.getElementById("desc");

	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
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		if (document.getElementById('m2'))
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		if (document.getElementById('more_txt'))
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	else
	{
		s.innerHTML = '';
	}
}