Have you ever had a need for adding external files into your Magento layout?
If you had then you know that you cannot do that from your xml layout files using methods/action:
<action method="addJs"> <action method="addCss"> or <action method="addItem">
You could do that by hard-coding your “head.phtml” file, but then those external files will be loaded on all Magento pages.
This simple extension will provide you easy access for adding/removing external files such as JavaScript or CSS, libraries from remote servers which you cannot or don’t want to put on your server.
I called it Inchoo_Xternal extension.
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