function createRequestObject() {
    var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}

// var http = createRequestObject();

function sndReq(action,dev,title) {
    clearInterval(update)
    // alert('action='+action+', dev='+dev+', title='+title);
    http.open('get', '/musik?action='+action+'&d='+dev+'&t='+title);
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function handleResponse() {
    if(http.readyState == 4){
        update = window.setInterval("poll()", 1000);
        var response = http.responseText;

        if(response.indexOf('refresh') != -1) {
            var upd = new Array();
            upd = response.split('\n');
            if(upd[1]) alert(upd[1]);
            if(upd[2]) alert(upd[2]);
            //document.getElementById(update[0]).innerHTML = update[1];
            document.location = document.location; // force reload;
        } else {
            if(response != '') alert(response);
        } 
    }
}

function poll () {
    clearInterval(update)
    http.open('get', '/musik?action=currentsong');
    http.onreadystatechange = highlightTitle;
    http.send(null);
} 

function highlightTitle () {
    if(http.readyState == 4) {
        update = window.setInterval("poll()", 1000);
        var refresh;
        var response = http.responseText;
        if(response) {
            var l = response.split("\n");
            var t = document.getElementsByTagName('a');
            for (var i = 0; i<l.length; i++) {
                if(l[i] == 'refresh') {
                    refresh = 1;
                } else {
                    var n = l[i].split('_');
                    var m = n[0];
                    if(l[i]) {
                        // alert(l[i]);
                        for (var j = 0; j<t.length; j++) {
                            var id = t[j].id;
                            if(id) {
                                if (id.indexOf(m) != -1) {
                                    if(id == l[i]) {
                                        t[j].style.color = '#f00';
                                    } else {
                                        t[j].style.color = '#00f';
                                    } 
                                } 
                            } 
                        } 
                    } 
                } 
            } 
            if(refresh) document.location = document.location;
        } 
    } 
}