You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allimages>
      <img name="B-92_parts.jpg" timestamp="2013-04-19T15:53:24Z" url="http://www.gunsopedia.com/images/4/4c/B-92_parts.jpg" descriptionurl="http://www.gunsopedia.com/File:B-92_parts.jpg" ns="6" title="File:B-92 parts.jpg" />
      <img name="BARS.gif" timestamp="2013-04-19T15:47:11Z" url="http://www.gunsopedia.com/images/0/09/BARS.gif" descriptionurl="http://www.gunsopedia.com/File:BARS.gif" ns="6" title="File:BARS.gif" />
      <img name="BARVietnam.jpg" timestamp="2013-04-19T15:51:47Z" url="http://www.gunsopedia.com/images/5/51/BARVietnam.jpg" descriptionurl="http://www.gunsopedia.com/File:BARVietnam.jpg" ns="6" title="File:BARVietnam.jpg" />
      <img name="BAR_components.jpg" timestamp="2013-04-19T15:32:33Z" url="http://www.gunsopedia.com/images/b/b7/BAR_components.jpg" descriptionurl="http://www.gunsopedia.com/File:BAR_components.jpg" ns="6" title="File:BAR components.jpg" />
      <img name="BAR_parts_view.jpg" timestamp="2013-04-19T15:52:37Z" url="http://www.gunsopedia.com/images/3/30/BAR_parts_view.jpg" descriptionurl="http://www.gunsopedia.com/File:BAR_parts_view.jpg" ns="6" title="File:BAR parts view.jpg" />
      <img name="BAR_patent.jpg" timestamp="2013-04-19T15:26:30Z" url="http://www.gunsopedia.com/images/6/68/BAR_patent.jpg" descriptionurl="http://www.gunsopedia.com/File:BAR_patent.jpg" ns="6" title="File:BAR patent.jpg" />
      <img name="BATFE.gif" timestamp="2013-04-19T15:44:59Z" url="http://www.gunsopedia.com/images/a/a2/BATFE.gif" descriptionurl="http://www.gunsopedia.com/File:BATFE.gif" ns="6" title="File:BATFE.gif" />
      <img name="BATFE_shipping_letter.jpg" timestamp="2013-04-19T15:20:54Z" url="http://www.gunsopedia.com/images/a/ae/BATFE_shipping_letter.jpg" descriptionurl="http://www.gunsopedia.com/File:BATFE_shipping_letter.jpg" ns="6" title="File:BATFE shipping letter.jpg" />
      <img name="BB_copper_and_nickel_plated.jpg" timestamp="2013-04-19T15:35:19Z" url="http://www.gunsopedia.com/images/2/27/BB_copper_and_nickel_plated.jpg" descriptionurl="http://www.gunsopedia.com/File:BB_copper_and_nickel_plated.jpg" ns="6" title="File:BB copper and nickel plated.jpg" />
      <img name="BB_gun_with_CO2_and_BBs.jpg" timestamp="2013-04-19T15:51:27Z" url="http://www.gunsopedia.com/images/9/9e/BB_gun_with_CO2_and_BBs.jpg" descriptionurl="http://www.gunsopedia.com/File:BB_gun_with_CO2_and_BBs.jpg" ns="6" title="File:BB gun with CO2 and BBs.jpg" />
    </allimages>
  </query>
  <query-continue>
    <allimages aicontinue="BDA_380.jpg" />
  </query-continue>
</api>