function setDocHeight(goalHeight) {
    $('#contentContainer').animate({ height: goalHeight }, "fast");
}

function switchContent(selector, headText, divHeight) {

    var $sender = $("#" + selector);
    var divID = 'div' + $sender.attr('id');
    
    $("div#navigationPanel a").removeClass('navigateClicked');
    $sender.addClass('navigate');
    $sender.addClass('navigateClicked');

    setDocHeight(divHeight);

    $("div#contentContainerCenter > div:visible").fadeOut('fast', function() {

        $('h1#hAbout').text(headText);
        $("div#"+divID).fadeIn('fast');

    });
}