function showWhat(t){
for(i=1;i<=500;i++){
	s = "p"+i
	if(s!=t){
		if(document.getElementById(s)){
		document.getElementById(s).style.display = 'none';
		}
	}
}
	document.getElementById(t).style.display = 'block';
	document.getElementById('hhh3').innerHTML = 'Bird ' + t.substr(1);
}