I guess you need to include Prototype in the parent document too.
BTW, use $$ to select elements in your document: $$('div') will give you
any DIV element in your current document, almost like
document.querySelectorAll; use $( id ) as a replacement of
document.getElementById( id )
On Monday, July 15, 2013 10:14:05 PM UTC+2, Balaram Das Mahant wrote:
>
> I am new to Prototype, I have a webpage and an iframe in it. I am loading
> Prototype in my iframe and am trying to use Selector API to get DOM
> references for elements of my parent window.
> Eg:
> Selector.findChildElements(document,['div']) is returning references to
> DIV elements of iframe's document.
> But,Selector.findChildElements(parent.document,['div'])
> is not returning any references to DIV elements of parent's document.
> Instead, giving an error "TypeError: Cannot call method 'identify' of null".
> When I deep dive into code, I find 'Element' is actually adding 'identify'
> method (which is in my iframe context, which is addigning a dummy 'id'
> attribute). First of all my understanding of Prototype and its Selector API
> is poor, please suggest a way I can use Selector API to fetch references to
> DOM elements of my parent document.
>
> Thanks in Advance.
> -Balaram.
>
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