[AI] (Tech Dose of the Day) Greasemonkey

vishnu ramchandani vishnuhappy at yahoo.com
Thu Feb 7 00:28:27 EST 2008


Greasemonkey
contributor : Rithish Saralaya from
Media&Entertainment Vertical Initiative (Mphasis
Software Services)
What is Greasemonkey?
Greasemonkey is a Mozilla Firefox extension that
allows users to install scripts that make on-the-fly
changes to most HTML-based web pages. As the
Greasemonkey scripts are persistent, the changes made
to the web pages are executed every time the page is
opened, making them effectively permanent for the user
running the script.
Greasemonkey can be used for adding new functionality
to web pages (for example, embedding price comparison
in Amazon.com web pages), fixing rendering bugs,
combining data from multiple webpages, and numerous
other purposes. Well-written Greasemonkey scripts can
integrate changes so well that their additions appear
to be natural parts of the web page.
Further info:
Most Greasemonkey user scripts are written by hand,
using site-specific JavaScript code which manipulates
the contents of a web page using the Document Object
Model interface. userscripts.org maintains a database
of Greasemonkey scripts, and for each it lists the
URLs of web pages to which the scripts pertain.
Some of the Greasemonkey scripts enable you to -
• Alter Gmail to embed Google Reader into it, thus
providing an RSS feed option.
• Show a list of competing retailers' prices for a
book when viewing the book on online retailers.
• Remove advertisements from many sites, including
popups and Google text ads.
• Alter the layout of pages, including sizes of
elements and screen sizes other than what the author
considered.
• Autofill forms.
• Filter specific posters from message board sites.
• Add or remove accessibility features from pages.
• Enhance the content of pages by correlating
information from related pages on the same site,
and/or other sites.
Further References 
Wikipedia : 
http://en.wikipedia.org/wiki/Greasemonkey
Geasemonkey - Firefox Addon : 
https://addons.mozilla.org/en-US/firefox/addon/748
Programming with Greasemonkey : 
http://diveintogreasemonkey.org/  


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