Show the image filename as a legend in modal window

gistfile1.js

/*
 * Bootic.net
 * Show the image filename as a legend in modal window
 */
var showVariantName = (function(){
    function getVariantName(url) {
        var reImg       = /(\d+)-([^?]*)/;
        var reStripExt  = /(.*)\.[^.]+$/;
        var reCleanName = /_+|-+/g;
        return url.split("/").pop().match(reImg)[2].match(reStripExt)[1].replace(reCleanName,' ');
    }

    $('#product-gallery li a').each(function(){
         var newName = getVariantName(this.href);
         $(this).attr('title',newName);
    })
})()