$(function() {
    
    //hover portfolio categories
    $('.fakesprite li').hover(function() {
        $('.hovered-sprite').removeClass('hovered-sprite');
        var workcat = $(this).attr('id');
        $('.'+workcat).addClass('hovered-sprite');
    });
    
    $('.sprite').hover(function() {
        $('.hovered-sprite').removeClass('hovered-sprite');
    });
    
});