PRB: "Is Not An Object" Error When Submitting Incomplete Doc

MORE INFORMATION

Steps to Reproduce Behavior

Place the following code in the onclick event of a button in one frame of a two-frame URL and name the other frame "frame2." When clicking the button, the error appears. The added lines to make it work are commented:

   parent.frame2.document.open() ;

   // added line
   parent.frame2.document.write('<HTML><HEAD><TITLE>a</TITLE>') ;
   parent.frame2.document.write('</HEAD><BODY>') ;

   parent.frame2.document.write('<form method="POST" name="list" ') ;
   parent.frame2.document.write('<action="feedback.exe">') ;

   parent.frame2.document.write('<input type="hidden" name="Name" ') ;
   parent.frame2.document.write('value="x">') ;

   parent.frame2.document.write('</form>') ;

   // added line
   parent.frame2.main.document.write('</BODY></HTML>') ;

   // error occurs here if the other commented lines are not included.
   parent.frame2.main.document.list.submit() ;
   parent.frame2.document.close() ;