var photo = '';
function handleResponsealbum() {
	if(http.readyState == 4){
		var response = http.responseText;
	}
}
function clic_image(id){
	if(photo != id)
	{
		http.open('get','clic.php?photoid='+id);
		http.onreadystatechange = handleResponsealbum ;
		http.send(null);
		photo = id;
	}
}