function optin()
{
  var http = null;
  if(window.XMLHttpRequest)
    http = new XMLHttpRequest();
  else if (window.ActiveXObject)
    http = new ActiveXObject('Microsoft.XMLHTTP');


  http.onreadystatechange = function()
  {
    if(http.readyState == 4)
    {
  		document.getElementById("optinform").style.display='none';
  		document.getElementById("optinmsg").style.display='block';
  	}
  };

 http.open('POST','actions/email_optin.asp',true);
 http.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
 http.send('newsletter=' + document.getElementById('newsletter').value);
}