function getXmlhttpObject()
{
    var xmlhttp = false;
    try {
        xmlhttp = new ActiveXObject('Msxml2.XMLHTTP');
    } catch(e) {
        try {
            xmlhttp = new ActiveXObject('Microsoft.XMLHTTP');
        } catch(e) {
            xmlhttp = new XMLHttpRequest();
        }
    }
    return xmlhttp;
}


function xcall(url, handler)
{
    var xmlhttp = getXmlhttpObject();
    if (!xmlhttp) {
        return false;
    }
    xmlhttp.open('GET', url);
    xmlhttp.onreadystatechange = function() {
        handler(xmlhttp);
    };
    xmlhttp.send(null)
    return true;
}


function xcallNoHandler(url)
{
    var xmlhttp = getXmlhttpObject();
    if (!xmlhttp) {
        return false;
    }
    xmlhttp.open('GET', url);
    xmlhttp.onreadystatechange = function() {
 //       xhandleAlert(xmlhttp);
    };
    xmlhttp.send(null)
    return true;
}

/**
* test function for getting return from handle calling
*/
function xhandleAlert(xmlhttp) {
    if (xmlhttp.readyState == 4) {
        alert(xmlhttp.responseText);
    }
}


/**
* put result to element
*/
function xhandleResult(xmlhttp, element)
{
    if (xmlhttp.readyState == 4) {
        element.innerHTML = xmlhttp.responseText;
    }
}


/**
* call ajax to get result to element
*/
function xgetResult(url, elementid)
{
    var element = false;
    element = document.getElementById(elementid);
    if (!element) {
        return false;
    }
    element.innerHTML = 'Loading...';

    var xmlhttp = getXmlhttpObject();
    if (!xmlhttp) {
        return false;
    }
    xmlhttp.open('GET', url);
    xmlhttp.onreadystatechange = function() {
        xhandleResult(xmlhttp, element);
    };
    xmlhttp.send(null)
    return true;
}


function xgetResultF(url, elementid)
{
    xgetResult(url, elementid);
}