TinyMCE Image URL select

I have written my own image uploader for TinyMCE, but I am left with one dilemma: how do I select the image to show in the "Image URL" field of the TinyMCE advimage popup?

My image uploader opens in another popup when I click the button next to the "Image URL"开发者_如何转开发 field. So I need to get the image url from my popup and insert it in the other popup in that field. I can get the path very easy, but I don't know how to insert it in the other place.

Any thoughts?

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I'm using the jQuery build, here is part of the code I'm using from within the custom filebrowser:

$('.my-image').click(function() {// Change this to your event/selector

    var $src = $(this).val();// Change this to whatever the image path is
    if ( ! $src) return false;

    // Find the iframe within the popup
    var $input = $(window.top.document)
    .find('iframe[src*="advimage/image.htm"]')
    .contents()
    .find('input#src');

    // Trigger the preview and fill in the image dimensions
    $input.val($src).change();

    return false;
});

Maybe not the most elegant solution, but it's been working for me for years. Hope this helps.