function habilita(value){
  value = !value;
  $("#nome").attr("disabled", value);
  $("#email").attr("disabled", value);
  $("#localizacao").attr("disabled", value);
  $("#mensagem").attr("disabled", value);
  $("#enviar").attr("disabled", value);
}

function onBeforeSend(){
  habilita(false);
  $("#aguarde").show();
}
		
function onComplete(){
  habilita(true);
  $("#aguarde").hide();  
}
		
function ajaxSetup(){
	$.ajaxSetup({
		beforeSend: onBeforeSend,
		complete: onComplete
	});
}

function init(){
	ajaxSetup();
	$("#aguarde").hide();
	$("#enviar").attr("disabled", true);
	$("#femail").ajaxForm({url: "email.php", dataType: "json", success: function(data){
		$("#aguarde").hide();  
		if (data.enviado){
			alert("Mensagem enviada!");
			window.location = "index.html";
		}
		else
			alert(data.msg);
	}}); 
}
$(init);