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Asked: 2026-06-01T16:05:44+00:00

Is its possible to have a javascript file that is aware of two different

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Is its possible to have a javascript file that is aware of two different HTML files? And how would I do this?

I would like to be able to have two pages. index.html and pictures.html. I have an index.js that changes the display properties of index.html (it puts data based on people into tables and makes it look nice). I would like this current index.js file also to be able to edit the pictures.html file and change information there. index.html would link to pictures.html to display pictures of a person (based on the persons name I have them saved smith1.jpg, smith2.jpg, reagan2.jpg, ect). Is there anyway that this javascript file could get DOM elements based on their id or class of the second file (pictures.html) even though it “lives in” index.html? When i say lives in it is called at the top of the index.html page.

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1 Answer

  1. Editorial Team

    A script can access elements on another page if it was loaded in some way of connection.

    For example, if you make a popup using var popup = window.open(), the return value will contain a reference to the opened popup and this allows access to elements within the popup. E.g. popup.document.getElementById('something'). Pages loaded within frames, iframes and such have similar ways of access.

    So yes, if your page loads the second page its script can work there as well. I suggest avoiding this beyond opening and closing popups from a script though; a script should stay inside the box of its page and if it needs to do larger operations on another page, that usually means that you need to change your code architecture a bit.

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