function show(a,img){

for(i=1;i<=4;i++){
	document.getElementById(img+i).src = "/desktopmodules/formacoes/" + img+i+".gif";
	document.getElementById('t'+i).style.display = 'none';
}
	document.getElementById(img+a).src = "/desktopmodules/formacoes/" + img+a+"_at.gif";
	document.getElementById('t'+a).style.display = 'block';
}

function show2(a,img){

for(i=1;i<=4;i++){
	document.getElementById(img+i).src = "/desktopmodules/formacoes/" + img+i+".gif";
	document.getElementById('t3'+i).style.display = 'none';
}
	document.getElementById(img+a).src = "/desktopmodules/formacoes/" + img+a+"_at2.gif";
	document.getElementById('t3'+a).style.display = 'block';
}