[jQuery] Selecting current .jpg...

[john]

I'm sure there's something really simple I'm missing, but for the life
of me I can't figure it out.

here's a link to the page: http://smple.com/jquery/image_alt/

Basically, I just want the current .jpg to display the pop up box.

Here's the .js
---------------------------------------------------------------------------------------------

$(document).ready(function(){

        $("img").wrap("<div class=\"images\"></div>");
        $("img").after("<span></span>");


        $(".images img").hover(
                function(over){
                        var imgName = $(this).attr("alt");

                        $("span").text(imgName);

                        var altHeight = $("span").height();

                        $("span").animate({
                                 bottom: altHeight
                        }, 400);
                },

                function(out){
                        var imgName = $(this).attr("alt");
                        $("span");

                        $("span").animate({
                                 bottom: "0px"
                        }, 400);
                }
        );
});

Thanks for any help:)