function pesquisaFotos(){

	ano = document.getElementById("ano");
	area = document.getElementById("area");
	
	var url="index.php";
	
	if(ano.value!=="") url+="?ano="+ano.value;
	
	if((area.value!="") && (url=="index.php")) url+="?area="+area.value;
	else if(area.value!="")url+="&area="+area.value;
	
	location = url;

}