Show Leagues against SC2 Leaguejoins

userscript.js

// ==UserScript==
// @name       Show Leagues
// @namespace  http://use.i.E.your.homepage/
// @version    0.1
// @description  Show Leagues against SC2 LJs
// @match      http://www.esl.eu/eu/sc2/*/admin_leaguejoins*
// @copyright  2013, Martin "Mez" Meredith
// ==/UserScript==

jQuery('a.TextVSblack').each(function() {
    if (jQuery(this).text() == 'B.net') {
        var el = this;
        var url = jQuery(this).attr('href');
        var parts = url.match(/profile\/\d+\/\d\/.*\//);
        
        var api_url = 'http://eu.battle.net/api/sc2/' + parts[0] + '?callback=?'
        
        jQuery.getJSON(api_url, function(data) {
            
            if (data.career.league == undefined) {
                var img_url = "http://eu.battle.net/sc2/static/images/icons/league/none.png";
            } else {
                var img_url = "http://eu.battle.net/sc2/static/images/icons/league/" + data.career.league.toLowerCase() + ".png";
            }
            
            jQuery(el).parent().parent().find('img').before('<div style="display: inline-block; width:25px; height:25px; background: url(' + img_url + '); background-position: -145px 0; margin-right: 3px;">&nbsp;</div>');
        });

    }    
});