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

function sendRequest(file, _result, getRequestProc) {
result = _result;
document.getElementById(result).innerHTML = 'Loading... <img src="loading.gif">';
httpRequest.open('POST', file, true)
httpRequest.onreadystatechange = getRequest;
httpRequest.send(null);
}

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

function createHttpRequest()
{
    if (window.XMLHttpRequest) {
        try {
            return new XMLHttpRequest();
        } catch (e){}
    } else if (window.ActiveXObject) {
        try {
            return new ActiveXObject('Msxml2.XMLHTTP');
        } catch (e){
          try {
              return new ActiveXObject('Microsoft.XMLHTTP');
          } catch (e){}
        }
    }
    return null;
}