function validate_username_and_password() {
    var login_form = document.getElementById("main_admin_login_form");
    $.post(window.dev + "/code/php/run_function.php", {
        function_to_call: "login",
        username: login_form.cookology_username.value,
        password: login_form.cookology_password.value
    }, function(result) {
        if (result == "fail") {
            alert("Username and password are incorrect!");
            login_form.cookology_password.value = "";
        } else if (result == "success") {
            get_logged_in_page();
        }
    });
}

function log_out() {
    $.post(window.dev + "/code/php/run_function.php", {
        function_to_call: "logout"
    }, function(){
        get_logged_out_page()
    });
}

function get_logged_out_page() {
    var form = document.getElementById("hidden_post_form");
    form.setAttribute("action", window.dev + "/login/");
    form.submit();
}

function get_logged_in_page() {
    var form = document.getElementById("hidden_post_form");
    form.setAttribute("action", window.dev + "/admin/");
    form.submit();
}