<!--
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_ajax = createRequestObject();

function sendRequest(ajaxobj, action, callback)
{
    var poststr = "action=" + encodeURI(action);
    ajaxobj.open('post', 'rpc.php',true);
    ajaxobj.onreadystatechange = callback;
    ajaxobj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    ajaxobj.setRequestHeader("Content-length", poststr.length);
    ajaxobj.setRequestHeader("Connection", "close");
    ajaxobj.send(poststr);
}
//-->