$(document).ready(function() {
    //hide the all of the form elements
    $("#MediaAreaZone tr[class!='PnsDefaultRow']").hide();
    $("#MediaAreaZone tr[class='PnsDefaultRow']").show();
    if (!($("#SomeStates").is(":checked"))) {
        $(".PnsStateChoices").hide();
    }
    if (!($(".PnsAdditionalCountries").is(":checked"))) {
        $(".PnsCountryChoices").hide();
    }

    //toggle the componenet with class msg_body
    $("#MediaAreaZone a").click(function() {
        $("#MediaAreaZone a").toggleClass("cwPageTitle", false);
        $(this).toggleClass("cwPageTitle", true);
        $("#MediaAreaZone tr[class!='PnsDefaultRow']").hide();
        var thisTextValue = $(this).text()
        var thisSelector = "#MediaAreaZone tr[class='" + thisTextValue + "']";
        $(thisSelector).show();
    });
    $(":input[name='StateChoice']").click(function() {
        var thisValue = $(this).attr("id");
        if (thisValue == "SomeStates")
        { $(".PnsStateChoices").show(); }
        else
        { $(".PnsStateChoices").hide(); }
    });
    $(".PnsAdditionalCountries").click(function() {
        var thisValue = $(this).attr("checked");
        if (thisValue == true)
        { $(".PnsCountryChoices").show(); }
        else
        { $(".PnsCountryChoices").hide(); }
    });

});