Want to attach JQuery library to webpart

Hi,

Actually the _layouts is a folder which is in 14 hive("C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14"). So all our application related files are deployed to this folder of Sharepoint Server when we created a mapped folder in our solution.

Please see following article for adding mapped folder to your solution:

http://blogs.msdn.com/b/vssharepointtoolsblog/archive/2010/03/12/deploying-files-using-mapped-folders.aspx

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