</rss> & </feed> Subscribe Button Generator

Display buttons upon detection of feeds.

This program was taken from userscripts-mirror.org.

Note: Chrome, Opera and IE7Pro compatible except

1. the auto update feature works only on Firefox
2. link tags injection only works in Firefox and Opera

due to non-firefox platform limitations/differences.

IE7Pro bundles an older version of this script by default.

Changelog:

Version 2.1 - Fixed Content Security Policy issues
Version 2.0 - 'more' button was broken for me
some javascript lint cleanup
Lighter icons by simon!
Version 1.9 - Fixed invalid update metadata
Version 1.8 - Layout fix on apple.com/macupdate.com etc.
Version 1.7 - Minor layout fix on arstechnica.com
Version 1.6 - Insert discovered link tags in header for the browser's detection to list them too
Version 1.5 - Added license info
Added checks for feeds like &feed=rss or &feed=atom and some case insensitivity
Version 1.4 - Made the feed check slightly more stringent by excluding javascript: mailto: etc. urls
Version 1.3 - Reduce the number of button shown initially to a sane minimum
Version 1.2 - Fixed partially broken auto update.
Don't increase the install count on userscripts-mirror.org while checking for updates
Version 1.1 - Misc code cleanup
Version 1.0 - Added auto update without requiring an external script
Version 0.9 - Added a close button
Version 0.8 - Checks some wiki feeds with ?action=rss_rc and feeds with /rss/$ or /atom/$
Version 0.7 - Check for feedburner feeds
Version 0.6 - Fixed a major issue with using snapshotLength when it was not available
Version 0.5 - Updated contact info
Version 0.4 - Added optional auto-update facility
Version 0.3 - Added some speed optimizations
Version 0.2 - Merged Iain Brodfoot's floating div behaviour and removed purl.org links
- Allow revert to old behaviour by hand editing this script
Version 0.1 - First release