text: 
  var docs = initDOMHeapCoreLevel1();
  var jsUnitCore = initJsUnitCore();
  var DOMTestCase = initDOMTestCase(jsUnitCore);   
  
  
  /**
  * 
      If there is not a first child then the "getFirstChild()"
      method returns null.
  
      Retrieve the text of the first "em" element and invoke the "getFirstChild()" method.   It
      should return null.
  
  * @author Curt Arnold
  * @see http://www.w3.org/TR/1998/REC-DOM-Level-1-19981001/level-one-core#ID-169727388
  * @see http://www.w3.org/Bugs/Public/show_bug.cgi?id=246
  */
  
       /*
       * @id hc_nodegetfirstchildnull
       */
       (function hc_nodegetfirstchildnull() {
     var success; 
      var doc;
        var emList;
        var emNode;
        var emText;
        var nullChild;
        
  	   
  	   
  	doc = docs["hc_staff.html"]
             emList = doc.getElementsByTagName("em");
        emNode = emList.item(0);
        emText = emNode.firstChild;
  
        nullChild = emText.firstChild;
  
        jsUnitCore.assertNull("nullChild",nullChild);
      
  })()
  
  