$(document).ready(function() {
    $("#btnSubscribe").click(function() {
        insertInmaSubscription();
        return false;
    });
});

function insertInmaSubscription() {
    var email = $("#txtSubscriberEmail");
    var feedback = $("#subFeedback");
    $.get(_basePath + "GenericHandlers/AjaxHandler.ashx?action=InmaSubscription&email=" + $(email).val(), function(data) {
        if ($(feedback).length > 0) {
            alert("data: " + data);
            $(feedback).replaceWith("<div id='subFeedback' style='clear:both;margin:5px 0 -5px 0;color:red'>" + data + "</div>");
        } else {
            $("#btnSubscribe").after("<div id='subFeedback' style='clear:both;margin:5px 0 -5px 0;color:red'>" + data + "</div>");
        }
    });
}