function nyit(){
    var xmlhttp;
    try{
        // mozilla / safari / ie7
        xmlhttp = new XMLHttpRequest();
    } catch (e) {
        // ie
        var XMLHTTP_IDS = new Array( 'MSXML2.XMLHTTP.5.0',
                                     'MSXML2.XMLHTTP.4.0',
                                     'MSXML2.XMLHTTP.3.0',
                                     'MSXML2.XMLHTTP',
                                     'Microsoft.XMLHTTP');
        var success = false;
        for (var i=0; i < XMLHTTP_IDS.length && !success; i++){
            try{
                xmlhttp = new ActiveXObject(XMLHTTP_IDS[i]);
            }catch (e) {}
        }
        if(!success){
        }
    }
    return xmlhttp;
}

function szamolas(melyik){
    var kliens = nyit();
    if(kliens!=null){
        kliens.open('GET', 'http://'+location.hostname+'/index/szamol/azon/'+melyik, true);
        kliens.send(null);
        kliens.onreadystatechange = function(){
            if(kliens.readyState==4)
                if(kliens.status == 200)
                    document.getElementById("szam").innerHTML=kliens.responseText;
        }
    }
}