function load(strona) {
        var ajaxRequest;
    
    try{
        ajaxRequest = new XMLHttpRequest();
    } catch (e){
        try{
            ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try{
                ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e){
                alert("Your browser broke!");
                return false;
            }
        }
    }
    // Create a function that will receive data sent from the server
    ajaxRequest.onreadystatechange = function(){
        if(ajaxRequest.readyState == 4){
            var ajaxDisplay = document.getElementById('home');
            ajaxDisplay.innerHTML = ajaxRequest.responseText;
        }
        else {
            var ajaxDisplay = document.getElementById('home');
            ajaxDisplay.innerHTML = "<center><img src='images/loading.gif' /></center>";
        }
    }
        ajaxRequest.open("GET", strona, true);
        ajaxRequest.send(null);
    }