function affImg(name,id,max){
	for(i=1;i<=max;i++){
	if(document.getElementById(name+"_"+i)){
		document.getElementById(name+"_"+i).style.display = "none";
		}
	}
	if(document.getElementById(name+"_"+id)){
		document.getElementById(name+"_"+id).style.display = "block";
	}
}