function jah(url,target) {
    // native XMLHttpRequest object
    document.getElementById(target).innerHTML = '<img src="/images/carregando.gif"></img>Carregando...';
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = function() {jahDone(target, url);};
        req.open("GET", url, true);
        req.send(null);
    // IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = function() {jahDone(target, url);};
            req.open("GET", url, true);
            req.send();
        }
    }
} 
function jahDone(target, url) {
    // only if req is "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            results = req.responseText;
            document.getElementById(target).innerHTML = unescape(results).replace(/\+/g,' ');//results;
        } else {
            document.getElementById(target).innerHTML="jah error:\n" +
                req.statusText+" "+url;
        }
    }
}