Debug my javascript issue with forms and frames

[sammy vang]

You can consider me an amature. I can't figure this one out. Hopefully, I can explain it well enough.

Here's the structure of my page:

***myASPpage.as p***
(contains a frame inclosed in a div)
<frame id=myFrame>
|
V

***mySearch.asp ***
(contains a form with two select fields)
<form id=searchForm>
fields: model & serial
|
V

***myScript.asp ***
(a script that populates the serial field with distinct serial numbers based on the model number choosen)

On this page, I'm trying to reference the "serial" field from "searchForm " and get it's length using this code:

parent.frames['myFrame'].document.form('searchForm').getElementById('serial').options.length;

But, it gives me "null or object not found". Oddly, I've gotten my code to work perfectly fine if I don't use an iFrame and keep all the code from "myScript.a sp" on the same page as "mySearch.a sp". So, I'm thinking I'm not doing something correctly due to the frame.

[acoder]

That line of JavaScript is invalid syntax. Either try:

parent.frames['myFrame'].document.forms['searchForm'].serial.options.length;

or if serial has an ID:

parent.frames['myFrame'].document.getElementById('serial').options.length;

[sammy vang]

Thanks for the reply. I'm still getting the error:

Message: 'parent.frames. myFrame.documen t' is null or not an object


I've read tons of tutorials on these tree structures, but I guess I'm still missing something.

[acoder]

myFrame should be the name of the frame:

<frame name="myFrame" ...>

[sammy vang]

I figured it out. Your original solution was correct minus one small thing (on my end). The last script (asp page) was opening as new window. So I had to use:

"opener" instead of "parent"