function LoadRemote(url, strId) {
    if (url == '') { return }
    if (window.ActiveXObject) {
        httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
    } else {
        httpRequest = new XMLHttpRequest();
    }

    httpRequest.open("GET", url, false);
    httpRequest.setRequestHeader("Content-Type", "text/html; charset=utf-8");
    httpRequest.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2001 00:00:00 GMT");
    httpRequest.send(null);

    if (httpRequest.readyState == 4) {
        if (httpRequest.status == 200) {
            if (strId) {
                objGet(strId).innerHTML = httpRequest.responseText;
            } else {
                return httpRequest.responseText;
            }
        } else {
            alert("Chyba při načítání stránky " + httpRequest.status + " : " + httpRequest.statusText);
        }
    }
}