function createHttpRequest() {
    var httpRequest;
    var browser = navigator.appName;

    if (browser == "Microsoft Internet Explorer") {
       httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
    } else {
       httpRequest = new XMLHttpRequest();
    }

    return httpRequest;
    } 

   function sendRequest(file, _resultId, getRequestProc) {
    resultId = _resultId;
    
    httpRequest.open('POST', file);
    httpRequest.onreadystatechange = getRequestProc;
    httpRequest.send(null);
    }

   function getRequest() {
    if (httpRequest.readyState == 4) {
    document.getElementById(resultId).innerHTML = httpRequest.responseText;
    

 
}
} 


var httpRequest = createHttpRequest();
var resultId = ''; 

      window.onload=function(){ sendRequest('../export.php', 'result', getRequest);}