Cocos 2d-x and Cocos Studio poor documentation

Hi, slackmoehrle!
I want to see page
http://cocos2d-x.org/docs/manual/framework/html5/v3/eventManager/en

but get this:
404 Not Found

nginx/1.0.15

Only my problem?

I work in cocos creator first time and i create a button.
How i must apply event listener to in? Is that too hard?
May be exsist a tutorial for that simple action?
I want just click to a button and create simple function for MouseDown or MouseUp and all (like MS Visual Studio).

Sorry, cant create new topic, get error every time “you dont have permissions for this page”

There might not be a page. Let me look into it

So, how about page http://cocos2d-x.org/docs/manual/framework/html5/v3/eventManager/en
is it present? I cant see it.

it is here: https://github.com/chukong/cocos-docs/blob/v3-unified-documentation/manual/framework/html5/v3/eventManager/en.md

So much thx!!

PS.
From page
http://www.cocos2d-x.org/wiki/Cocos2d-JS#4-Documents
i can’t follow any link from main section.
error 404