function showInfo (inforef)
{
		var activeinfo = new Array("lez1", "lez2", "lez3", "lez4", "lez5", "lez6", "lez7", "lez8", "lez9", "lez10");
		
		for (var i=0; i<activeinfo.length; i++)
		{
			moreinfo = document.getElementById(activeinfo[i]).style;
			moreinfo.visibility = 'hidden';
		}
		moreinfo = document.getElementById(inforef).style;		
		moreinfo.left = (document.body.clientWidth / 2);
		moreinfo.visibility = 'visible';
}

function extradownloadinfo ()
{
		moreinfo = document.getElementById('extradownloadinfo').style;		
		moreinfo.left = (document.body.clientWidth / 2);
		moreinfo.visibility = 'visible';
}

function hideInfo (inforef)
{
		moreinfo = document.getElementById(inforef).style;
		moreinfo.visibility = 'hidden';
}