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Invalid Expanded Name In LINQ to XML

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Assuming I am reading this xml file using XLINQ. I encountered an error that says invalid expanded name. As i go through this xml file, i found a node images that contains element tags. The parent node is also an element tag. Since i don't use the images tag, I simply remove it using string manipulations. Below is the xml file and the solution:
  <element>  
        <id>2768687195</id>  
        <title>Customer Service Representative</title>  
        <body>Do you dream of being your own boss and choosing the work you   
  do, when you work and who you work for?   
        </body>  
        <url>http://jobs.myjob.careercenter-servicecrew.html</url>  
        <category>  
          <id>job/customer_service</id>  
          <name>Customer Service &amp; Call Center Jobs</name>  
        </category>  
        <source>  
          <id>www</id>  
          <name>Oodle</name>  
        </source>  
        <location>  
          <citycode>can:on:ajax</citycode>  
          <name>Ajax</name>  
          <state>ON</state>  
          <country>CAN</country>  
          <latitude>43.8610</latitude>  
          <longitude>-79.0292</longitude>  
        </location>  
        <images>  
          <element>  
            <src>http://i.oodleimg.com/item/2768687195u_0s?1318626136</src>  
            <width>100</width>  
            <height>75</height>  
            <alt>Customer Service Representativ</alt>  
            <num>0</num>  
            <size>s</size>  
          </element>  
          <element>  
            <src>http://i.oodleimg.com/item/2768687195u_0m?1318626136</src>  
            <width>144</width>  
            <height>108</height>  
            <alt>Customer Service Representativ</alt>  
            <num>0</num>  
            <size>m</size>  
          </element>  
          <element>  
            <src>http://i.oodleimg.com/item/2768687195u_0l?1318626136</src>  
            <width>208</width>  
            <height>156</height>  
            <alt>Customer Service Representativ</alt>  
            <num>0</num>  
            <size>l</size>  
          </element>  
          <element>  
            <src>http://i.oodleimg.com/item/2768687195u_0x?1318626136</src>  
            <width>100</width>  
            <height>100</height>  
            <alt>Customer Service Representativ</alt>  
            <num>0</num>  
            <size>x</size>  
          </element>  
          <element>  
            <src>http://i.oodleimg.com/item/2768687195u_0j?1318626136</src>  
            <width>100</width>  
            <height>100</height>  
            <alt>Customer Service Representativ</alt>  
            <num>0</num>  
            <size>j</size>  
          </element>  
        </images>  
        <ctime>1318626135</ctime>  
        <paid>Yes</paid>  
        <revenue_score>6</revenue_score>  
        <user>  
          <id>51527855</id>  
          <url>http://www.oodle.com/seller/arise-virtual-solutions/51527855/</url>  
          <name>Arise Virtual Solutions</name>  
          <photo>http://i.oodleimg.com/a/img_profilephoto.gif</photo>  
        </user>  
        <attributes>  
          <company>Arise Virtual Solutions</company>  
          <fee>No</fee>  
          <full_time>Full Time</full_time>  
          <has_photo>Thumbnail</has_photo>  
          <job_title>Customer Service Representative</job_title>  
          <user_id>51527855</user_id>  
        </attributes>  
      </element>
C# Code: 
for (int ctr = 0; ctr < ListingSource.Length; ctr++)  
{  
  if (ListingSource.Contains("<images>"))  
  {  
     int length = (ListingSource.IndexOf("
     </images>") + 9) - ListingSource.IndexOf("
     <images>");  
     ListingSource = ListingSourceRemove  
     ListingSource.IndexOf("<images>"), length);  
     }  
}

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