function NLsubscribe(){
     var currentContent = document.getElementById('teaser').innerHTML; 
     
     http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
           http_request.overrideMimeType('text/xml');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
    //alert(document.getElementById('email').value);
    var url = "simple/index.php?email=" + document.getElementById('email').value+"&subscribe=yes";
    //alert(url);
    http_request.onreadystatechange  = alertContents;
    http_request.open('GET', url,  true); 
    http_request.send(null);
    
    function alertContents() { 
         
         document.getElementById('teaser').innerHTML = "<img src=\"processing2.gif\">";
         if(http_request.readyState  == 4)
         {
              if(http_request.status  == 200){ 
                  var msg = http_request.responseText;
                                                  
                  document.getElementById('teaser').innerHTML = msg; 
                  //alert("Received:"  + http_request.responseText); 
              }else{ 
                 alert("Error code " + http_request.status);}
         }
    }
}

function NLunsubscribe(email){
     var currentContent = document.getElementById('teaser').innerHTML; 
     
     http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
           http_request.overrideMimeType('text/xml');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
    //alert(email);
    var url = "simple/index.php?email=" + email +"&subscribe=no";
    //alert(url);
    http_request.onreadystatechange  = alertContents;
    http_request.open('GET', url,  true); 
    http_request.send(null);
    
    function alertContents() { 
         
         document.getElementById('teaser').innerHTML = "<img src=\"processing2.gif\">";
         if(http_request.readyState  == 4)
         {
              if(http_request.status  == 200){ 
                  var msg = http_request.responseText;
                                                  
                  document.getElementById('teaser').innerHTML = msg; 
                  //alert("Received:"  + http_request.responseText); 
              }else{ 
                 alert("Error code " + http_request.status);}
         }
    }
}