$(document).ready(function() { $("#send_message").click(function(a) { a.preventDefault(); var b = !1, d = $("#email").val(); if (0 == d.length || "-1" == d.indexOf("@")) { var b = !0; $("#email").addClass("error_input") } else $("#email").removeClass("error_input"); 0 == b && ($("#send_message").attr({ disabled: "true", value: "Done" }), $.post("subscribe.php", $("#subscribe_form").serialize(), function(a) { "sent" == a ? ($("#submit").remove(), $("#mail_success").fadeIn(500)) : ($("#mail_fail").fadeIn(500), $("#send_message").removeAttr("disabled").attr("value", "Send The Message")) })) }) });