var http_request_login = false;
   function makePOSTRequestlogin(url, parameters) {
      document.getElementById('logindiv').innerHTML = '<img src="pictures/loading.gif"><br />Loading...'; 
      http_request_login = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request_login = new XMLHttpRequest();
         if (http_request_login.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request_login.overrideMimeType('text/xml');
            http_request_login.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request_login = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request_login = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request_login) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      
      http_request_login.onreadystatechange = alertContentslogin;
      http_request_login.open('POST', url, true);
      http_request_login.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request_login.setRequestHeader("Content-length", parameters.length);
      http_request_login.setRequestHeader("Connection", "close");
      http_request_login.send(parameters);
   }

   function alertContentslogin() {
      if (http_request_login.readyState == 4) {
         if (http_request_login.status == 200) {
            //alert(http_request_login.responseText);
            result = http_request_login.responseText;
            document.getElementById('logindiv').innerHTML = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
  function load_login(obj) {
    var poststr = "txt_email=" + encodeURI(document.getElementById("txt_email").value);
    makePOSTRequestlogin('redirect.php?action=user&subaction=login', poststr);
  }