+1  A: 

JQuery provides autocomplete facility. try below link for download and demo single word

Your exclusive operation also availabe in jquery in following blog link. multiple word prediction

and its source available here

Paniyar
would be nice if the link on that blog to download the source code worked... aka useless at the moment
pablo
yeah on that page you linked to even in the edited link , the blog author links to: http://mycodes.schtuff.com/auto_complete_zip which is d e a d. the comments on the blog also say "broken link"i found the following: http://www.s3maphor3.org/tagdragon/ but you have to pay. but it essentially is what I was talking about
pablo
A: 

Did you find a solution that match to your image example ?? I try to find the same but very hard !!

Thank you

Niko
+1  A: 

There is Wick which does support textareas and multiple words: http://wick.sourceforge.net/wick_sample/

Sam
That's goddamn awesome dude, no idea why you got downvoted
David
A: 

The link below I believe is something very much like the thing you're asking for =)

http://automate.uni.cc/