function Anthem_PreCallBack() {
    var loading = document.createElement("div");
    loading.id = "loading";
    loading.style.color = "#fff";
    loading.style.backgroundColor = "#8F8F8F";
    loading.style.position = "absolute";
    loading.style.width = "150px";
    loading.style.left = findPosX(document.getElementById("wrap")) + 400 + "px";
    loading.style.top = findPosY(document.getElementById("wrap")) + 350 + "px";
    loading.style.zIndex = "9999";
    loading.style.padding = "10px";
    loading.style.fontSize = "11px";
    loading.style.fontFamily = "Verdana";
    loading.style.border = "solid 1px #000";
    loading.innerHTML = "Cargando datos,<br>Espere un momento,<br>por favor<br><br><img border='0' src='images/ajax-loader4.gif'>";
    document.body.appendChild(loading);
}

function Anthem_PostCallBack() {
    var loading = document.getElementById("loading");
    document.body.removeChild(loading);
}

function Anthem_Error(result) {
    alert('Error. ' + result.error);
}

function findPosX(obj) {

    var curleft = 0;
    if (obj.offsetParent) {
        while (obj.offsetParent) {
            curleft += obj.offsetLeft
            obj = obj.offsetParent;
        }
    }
    else if (obj.x)
        curleft += obj.x;
    return curleft;
}

function findPosY(obj) {
    var curtop = 0;
    var printstring = '';
    if (obj.offsetParent) {
        while (obj.offsetParent) {

            curtop += obj.offsetTop
            obj = obj.offsetParent;
        }
    }
    else if (obj.y)
        curtop += obj.y;
    window.status = printstring;
    return curtop;
}