function GoForward() {
    var currentPage = document.getElementById("CurrentPageHiddenField").value;
    currentPage++;
    document.getElementById("CurrentPageHiddenField").value = currentPage;

    if (document.getElementById("ChangePageButton") != null) {
        document.getElementById("ChangePageButton").click();
    }
}

function GoBack() {
    var currentPage = document.getElementById("CurrentPageHiddenField").value;
    if (currentPage > 1) {
        currentPage--;
        document.getElementById("CurrentPageHiddenField").value = currentPage;
    }
    if (document.getElementById("ChangePageButton") != null) {
        document.getElementById("ChangePageButton").click();
    }

}

function ChangePage(id) {
    document.getElementById("CurrentPageHiddenField").value = id;

    if (document.getElementById("ChangePageButton") != null) {
        document.getElementById("ChangePageButton").click();
    }
}