$(document).ready(function() {

    var blog = $('.blogForumSwitcher .blog .htmlContentContainer');
    var forum = $('.blogForumSwitcher .forum .htmlContentContainer');

    $('.blogForumSwitcher .forum').addClass(' disabled');

    forum.mouseover(function() {
        $('.blogForumSwitcher .forum').removeClass(' disabled');
        $('.blogForumSwitcher .blog').addClass(' disabled');
        $('.blogForumSwitcher').attr('style', 'background-position: right top');
    });

    blog.mouseover(function() {
        $('.blogForumSwitcher .blog').removeClass(' disabled');
        $('.blogForumSwitcher .forum').addClass(' disabled');
        $('.blogForumSwitcher').attr('style', 'background-position: left top');
    });
    
});