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  1. #1
    New to the CF scene
    Join Date
    Jan 2013
    Thanked 0 Times in 0 Posts

    Retrieve a div inside a div

    I've written a Greasemonkey script to replace the Firefox title bar at woot.com with the item, price, and % left - http://userscripts.org/scripts/show/137091 The problem is that it only works on the main woot-off page - if home.woot is also having a woot-off, you still get the item name from the main page.

    Here is the source at home.woot:
       <div class="offer woot-off ">
      <a class="info" href="http://home.woot.com/offers/smiths-electric-knife-sharpener-7#ref=home.woot.com/header/tab@3.9-home/daily">
      <div class="label">It's a Woot Off</div>
      <div class="title">Smith's Electric Knife Sharpener</div>
      <div class="price">
      <span class="price">$39.99</span>
      <span class="list-price">$99.99</span>
      <span class="percentage">60% off <span class="list-price-label">List Price</span></span>
    I have tried several different ways to retrieve the title. Right now, I have:
    var subpageItem = document.getElementsByClassName("offer woot-off ").getElementsByClassName("title")[0].innerHTML;
    What is the proper syntax? This seems like it should be so simple, but I'm just not getting it.

  2. #2
    Master Coder felgall's Avatar
    Join Date
    Sep 2005
    Sydney, Australia
    Thanked 932 Times in 919 Posts
    The problem you have is that the top div in your HTML contains two classes "offer" and "woot-off" but you are searching for "offer woot-off ") which is an invalid class name because class names cannot contain spaces. Because it is invalid that nodelist will be empty.
    Learn Modern JavaScript - http://javascriptexample.net/
    Helping others to solve their computer problem at http://www.felgall.com/

    Don't forget to start your JavaScript code with "use strict"; which makes it easier to find errors in your code.


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