/*----TreeView Node Events Handler-------------------------------------------------------*/

function ClientNodeExpanded(sender, eventArgs) {
    var Node = eventArgs.get_node().get_value();
    if (Node != null) {
        var CookieValue = Read_Cookie("ExpandedNodes");
        if (CookieValue == null) {
            Set_Cookie("ExpandedNodes", Node, 30);
        }
        else {
            if (!HasNodeValue(CookieValue, Node)) {
                if (CookieValue == "")
                    CookieValue = Node;
                else
                    CookieValue = CookieValue + "," + Node;
                Set_Cookie("ExpandedNodes", CookieValue, 30);
            }
        }
    }
}

function ClientNodeCollapsed(sender, eventArgs) {
    var Node = eventArgs.get_node().get_value();
    if (Node != null) {
        var CookieValue = Read_Cookie("ExpandedNodes");
        if (CookieValue.toString() == "") {
            Set_Cookie("ExpandedNodes", "", 30);
        }
        else {
            var sSaveValue = RemoveNodeValue(CookieValue, Node);
            Set_Cookie("ExpandedNodes", sSaveValue, 30);
        }
    }
}

function RemoveNodeValue(sValues, sCheckValue) {
    var sR = "";
    var val = sValues.split(",");
    for (i = 0; i < val.length; i++) {
        if (val[i] != sCheckValue) {
            sR = sR + "," + val[i];
        }
    }
    if (sR == null)
        return ("");
    else
        return sR.substring(1, sR.length);
}

function HasNodeValue(sValues, sCheckValue) {
    var val = sValues.split(",");
    for (i = 0; i < val.length; i++) {
        if (val[i] == sCheckValue)
            return true;
    }
    return false;
}


/*----Cookies-------------------------------------------------------*/

function Set_Cookie(name, value, days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        var expires = "; expires=" + date.toGMTString();
    }
    else var expires = "";
    document.cookie = name + "=" + value + expires + "; path=/";
}

function Read_Cookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return null;
}

function Delete_Cookie(name) {
    createCookie(name, "", -1);
}