This likely has nothing to do with java.  It looks like the 

javascript

 bug that claimed a few victims in the past 10 days or so.  Easiest is to try your luck installing  another browser like;

Firefox 

http://www.mozilla.org/en-US/firefox/all/

Chrome 

https://www.google.com/intl/en/chrome/browser/

Opera 

http://www.opera.com/

A new install will give you a clean user-profile.
To clean up you current browser-profile see;

http://www.flyordie.com/games/help/support/contents.html

I use a separate browser just for the games here.

good luck

> i just get the blue window...i wait for 15 min
> and nothing happens please help me.Thank you 

Hi, try to remove jave from your computer then re-install it again... Clean cache and cookies too... Then restart your computer and try to connect your nick again. 

Gl.

Lacoste06

try updating java