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Currently when the page loads, the function "wCS()" (writeCategorySelect) writes a dropdown (to view the dropdowns click "show categories") for each timeline entry. But most of the pages on our website have 100 timeline entries and therefore when the page loads the script runs 100 times and prompts an alert from firefox ("script still running on this page ..."). Since the dropdowns are only shown when the user clicks "add" it makes sense for the browser to write the drop-down only when needed.
The dropdown would be dynamic as it would have this onchange event:
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