write something on the parent frame's textbox without reloading the parent frame?

Is there a way to write something on the parent frame's textboxes without reloading the parent frame?

I have two iFrames. The parent frame commands these two iFrames. Each iFrame has three listboxes. The parent frame has textareas for searching words in both child frames (iFrames). The problem is that if I want to add words in the textarea of the parent frame after selecting the listboxes (in the iFrames) the listboxes cancel. It takes some time reselecting them again.

So I'm open to your suggestions. I was thinking of somehow adding two textboxes in the parent frame, and use the child iFrames to write down the selections in the textboxes (each iFrame to its' textbox) so that if I were to add words for searching in the parent frame I wouldn't need to reselect the 2 iFrames' listboxes.

This is the url.
http://i.domaindlx.com/wheelofgod/Bibletext.asp

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