disable script running from c#/asp.net

Hello I want to disable this script for twitter widget to be displayed on some pa开发者_开发技巧ges. How can I access the script from the backend and change the url on runtime?

<script id="twitter" src="http://widgets.twimg.com/j/2/widget.js">

Thanks in advance

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That's not really possible.. modern browsers will leave the code in memory even if you remove the script tag from the DOM itself.

The only way around I can think of is to "overwrite" the object/functions: in the bottom of the page have your own script defining exactly the same functions and objects like that script, except they will be null/empty so the final result is like removing the script.