var fDesc=new Array();
fDesc[0] = "This educational software can be used to introduce processes controlling climate. It can be used to discuss past climate variations and the different natural factors that influence climate (astronomic forcing, natural perturbations in the carbon cycle). The effect of climatic feedbacks can be shown by plugging or unplugging feedbacks. This software can also be used to discuss global warming, and test different carbon dioxyde emmissions scenarii.";

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 = '';
	}
}