// создание ajax объекта   
    function createRequestObject()    
    {   
        try { return new XMLHttpRequest() }   
        catch(e)    
        {   
            try { return new ActiveXObject('Msxml2.XMLHTTP') }   
            catch(e)    
            {   
                try { return new ActiveXObject('Microsoft.XMLHTTP') }   
                catch(e) { return null; }   
            }   
        }   
    }

function pesnia() {
       var cont = document.getElementById('see_track'); 

//        cont.innerHTML = "Loading ..."; 

  
        var http = createRequestObject();   
        if( http )    
        {   
            http.open('get', "/track_online.php", true);
            http.onreadystatechange = function ()    
            {   
                if(http.readyState == 4 && http.status == 200)    
                {  
                    cont.innerHTML = http.responseText;
                }  
            }   
            http.send(null);       
		}




setTimeout(pesnia,2000); 
}


pesnia();