Adds social buttons to SL Marketplace store pages.

Second_Life_Marketplace_Social_stores.user.js

// ==UserScript==
// @name        Second Life Marketplace Social Stores
// @namespace   https://marketplace.secondlife.com/
// @description Adds social buttons to SL Marketplace store pages.
// @include     https://marketplace.secondlife.com/stores/*
// @version     1.1
// @grant       none
// @updateURL   https://gist.github.com/SignpostMarv/6049057/raw/Second_Life_Marketplace_Social_stores.user.js
// ==/UserScript==
//
// License and Terms of Use
//
// Copyright (c) 2013 SignpostMarv
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
if(document.body.classList.contains('stores_show')){
    // store page
    var
        merch   = document.querySelector('#merchant-box'),
        addThis = document.createElement('div'),
        link    = document.createElement('a'),
        sep     = document.createElement('span'),
        twitter = document.createElement('a'),
        email   = document.createElement('a')
    ;
    addThis.className = 'addthis_toolbox addthis_default_style clear';
    link.className    = 'addthis_button_compact en-US';
    sep.className     = 'addthis_separator';
    twitter.className = 'addthis_button_twitter';
    email.className   = 'addthis_button_email';
    
    link.href = 'http://www.addthis.com/bookmark.php?v=250&pub=lindenlab1';
    link.appendChild(document.createTextNode('Share this item'));
    sep.appendChild(document.createTextNode('|'));
    
    [link, sep, twitter, email].forEach(function(a){
        addThis.appendChild(a);
    });
    
    window.addthis_config = window.addthis_config || {
      username: "lindenlab1",
      ui_cobrand: "",
      data_use_flash: false,
      ui_language: "en",
      ui_click: true
    };
    if(!document.querySelector('script[src$="addthis_widget.js"]')){
        var
            script = document.createElement('script')
        ;
        script.src = 'https://s7.addthis.com/js/250/addthis_widget.js';
        document.querySelector('head').appendChild(script);
    }
    merch.appendChild(addThis);
}