Java script to change form fields in frame

[747-th]

Hi 4 all

Help, plz

When I want change text field in form I use this Java script construction:
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document.myForm1.myText1.value ="This is new text";
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it's ok on same window
so how to change text field in form which locate in other frame?

I think it must begin like this:
... win1 = window.open('xxx.htm','MainFrame');
what's next????
- win1.myForm1.myText1.value ="This is text";
- window.win1.myForm1.myText1.value ="This is text";
- document.win1.myForm1.myText1.value ="This is text";
????

anybody understood what I want?
if yes - help

[747-th]

well
If u r such bad programmer I ask myself:


it must be :

parent.main.document.MyForm1.MyText1.value ="New text";