$(function () {
    $('.gallery-item').showFeatureText();
});
$.fn.showFeatureText = function () {
    return this.each(function () {
        var box = $(this);
        var text = $('span', this);
        text.css({
            display: 'block',
            position: 'absolute',
            top: '5px',
            left: '5px'
        }).hide();
        box.hover(function () {
            text.slideDown("fast");
        }, function () {
            text.slideUp("fast");
        });
    });
}