title: Find whether a particular cell of a table has an img tag
body: <p>I am generating a table dynamically using Django.
  The same table template is used to generate a variety of tables depending on the data supplied. In one scenario a particular column contains image tags.
  Since my table is editable (using jquery) the image cell also becomes editable and removes my content.
  I want some special behavior on double click of such cells like say upload an image. How do I accomplish this with a jquery?
  My script for making the table editable is given below.</p>
  
  <pre><code>       $(function() {
              $("td").dblclick(function() {
                  var OriginalContent = $(this).text();
  
                  $(this).addClass("cellEditing");
                  $(this).html("&lt;input type='text' value='" + OriginalContent + "' /&gt;");
                  $(this).children().first().focus();
  
                  $(this).children().first().keypress(function(e) {
                      if (e.which == 13) {
                          var newContent = $(this).val();
                          $(this).parent().text(newContent);
                          $(this).parent().removeClass("cellEditing");
                      }
                  });
                  $(this).children().first().blur(function() {
                      $(this).parent().text(OriginalContent);
                      $(this).parent().removeClass("cellEditing");
                  });
              });
          });
  </code></pre>