In the provided sample page I used jQuery to resolve your issue. With the following script I added the jQuery library.
is the jQuery object. Probably for some reasons the library is not loaded on your side and that is why the an exception is thrown. Please make sure that your project has a reference to that library.
If you don't have an internet connection it is not possible to get a reference to the jQuery library. In that case please download
it and add to your project.
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