function app_NewsletterSignup(email) {
  var errorMessage = "";
  if (email == "" || email == "Your Email Address") errorMessage += "\n - Your Email Address";
  
  if (errorMessage != "") {
    alert("You are required to complete the following fields: "+errorMessage);
    return false;
  }
  else {
    var URL = "/app/contact/send.asp?a=send&redirect=json&regarding=Email%20List%20Signup&email="+escape(email);
    jx.load(URL,function(data){
      if(data.success!=null) {
        $('#newsletter').html('<div class="center"><h3>Thank you for signing up!</h3><br />This window will automatically close in 5 seconds.</div>');
        setTimeout('$.fn.colorbox.close()',5000);
      }
    },'json','get');
  }
}