var XMLHttpRequestObject = null;

if(window.XMLHttpRequest) {
XMLHttpRequestObject = new XMLHttpRequest();

} else if(window.ActiveXObject) {
XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
}

function UploadProjektu() {

    if(XMLHttpRequestObject) {

        var p = document.getElementById("Informacja");
        var co1 = document.getElementById("uploadprojektu");
        
        var co = co1.value;
        
        XMLHttpRequestObject.open("GET", "upload.php?akcja=screen&co=" + co);
        
        XMLHttpRequestObject.onreadystatechange = function() {

            if(XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200) {
            
                  p.innerHTML = XMLHttpRequestObject.responseText;

            }
            
        }

        XMLHttpRequestObject.send(null);

    }
}