// JavaScript Document

//If our user enters data in the email input, then we need to enable our button
function OnChangedEmail()
{
if(document.form.EmailAddress.value == "")
{
document.form.btnSubmit.disabled = false;
}
else
{
document.form.btnSubmit.disabled = false;
}
}


function unsubscribeNewsletter()

{
if(window.XMLHttpRequest)
{
oRequest = new XMLHttpRequest();
}
else if(window.ActiveXObject)
{
oRequest = new ActiveXObject("Microsoft.XMLHTTP");
}

oRequest.open("POST", "unsubscribe_newsletter_ajax.asp", true);
oRequest.onreadystatechange = unsubscribe;

oRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
oRequest.send("strCmd=unsubscribe&EmailAddress=" + document.form.EmailAddress.value);
}

function unsubscribe()
{
if(oRequest.readyState == 4)
{
if(oRequest.status == 200)
{
document.getElementById("message").innerHTML = oRequest.responseText;
}
else
{
document.getElementById("message").innerHTML = "Asychronous Error";
document.getElementById("message").innerHTML = oRequest.status;
}
}
}