How to enable ErrorDocument for 400 error?

How to enable ErrorDocument for 400 error?

References

Reference NO 1

http://stackoverflow.com/questions/13655563/how-to-enable-errordocument-for-400-error

Reference NO 2

http://www.javascriptkit.com/howto/htaccess2.shtml

Reference NO 3

http://httpd.apache.org/docs/current/custom-error.html

Reference NO 4

http://www.addedbytes.com/articles/for-beginners/error-documents-for-beginners/

Reference NO 5

http://www.askapache.com/htaccess/apache-status-code-headers-errordocument.html

Reference NO 6

http://www.howtoforge.com/forums/showthread.php?t=41302

Reference NO 7

http://perishablepress.com/custom-http-errors-via-htaccess/

Reference NO 8

http://trac.edgewall.org/ticket/2371