var xmlhttp;

function m_click() {
    load(document.getElementById("joinMailList").value);

}

function load(str) {
    if (str.length == 0) {
        document.getElementById("resultsContainer").innerHTML = "Email address required.";
        return;
    }
    xmlhttp = GetXmlHttpObject();
    if (xmlhttp == null) {
        alert("Your browser does not support XMLHTTP!");
        return;
    }
    var url = "../signUp_mailingList.aspx";
    url = url + "?joinMailList=" + str;
    xmlhttp.onreadystatechange = stateChanged;
    document.getElementById("resultsContainer").innerHTML = "<img src='images/sending.gif' />";        
    xmlhttp.open("GET", url, true);
    xmlhttp.send(null);
}

function stateChanged() {
    if (xmlhttp.readyState == 4) {
        document.getElementById("resultsContainer").innerHTML = xmlhttp.responseText;
    }
}

function GetXmlHttpObject() {
    if (window.XMLHttpRequest) {

        // code for IE7+, Firefox, Chrome, Opera, Safari
        return new XMLHttpRequest();
    }
    if (window.ActiveXObject) {
        // code for IE6, IE5
        return new ActiveXObject("Microsoft.XMLHTTP");
    }
    return null;
}

function fbs_click() {
    u = location.href;
    t = document.title; window.open('http://www.facebook.com/sharer.php?u=' + encodeURIComponent(u) + '&t=' + encodeURIComponent(t), '_blank');
    return false;
}