Instead of polling, you can define event handlers for <script>'s onload and onreadystatechange event to detect when jQuery gets loaded. See Ben Alman's jQuery b

Instead of polling, you can define event handlers for <script>'s onload and onreadystatechange event to detect when jQuery gets loaded. See Ben Alman's jQuery bookmarklet generator for an example: http://benalman.com/code/test/jquery-run-code-bookmarklet/ http://benalman.com/code/test/jquery-run-code-bookmarklet/