var http_request = false;
   function ReplyPostRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } 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;
      }
      http_request.onreadystatechange = ReplyAlert;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   }
   
   function ReplyAlert() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('callbackresponsearea').innerHTML = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
   function getReplyInfo(obj) {
      var replystr = "fullname=" + encodeURI( document.getElementById("fullname").value ) +
                    "&phone=" + encodeURI( document.getElementById("phone").value ) +
                    "&email=" + encodeURI( document.getElementById("email").value ) +
                    "&besttime=" + encodeURI( document.getElementById("besttime").value );
      ReplyPostRequest('http://www.cruisingco.com/callback/send.asp', replystr);
   }