var spinner = '/images/spinner-red.gif';
var spinnerTimer = null;

function ShowPleaseWaitOverlay() {

    var plzWait = document.getElementById("PleaseWaitOverlay");
    if (plzWait != null) {
        plzWait.style.display = "";
    }

    setSpinner();
}

function setSpinner() {
    if (document.getElementById && spinner) {
        document.getElementById('PleaseWaitOverlayLoading').src = spinner;
    }
    if (spinnerTimer != null) {
        clearTimeout(spinnerTimer);
        spinnerTimer = -1; //done
    }
    if (spinnerTimer == null) {//need to reset the spinner after submit is called
        spinnerTimer = setTimeout("setSpinner()", 2);
    }
}

function RunPleaseWaitOverlay() {

    ShowPleaseWaitOverlay();

    return true;
}