When show a div hide others with navigation

[fourroses]

I have a topnavigation with some links and I have some hidden contentfields.
When I click on a link it animates the selected contentfield from bottom:-600 to bottom:0.
When I click on a other link, an other contentfield shows, **but I need it to hide the other..**


This is my site http://tiny.cc/3zppqw where the contentfields do pop up correct, but don't hide after clicking a other link.

Sorry, I'm a rookie/noob.


Is there anyone who can help me out?


I tried to make a fiddle: http://jsfiddle.net/fourroses666/8y7Sr/75/

Script:

    $(function() {
            $('#activator-bureau').click(function(){
                $('#overlay-bureau').fadeIn('fast',function(){
                    $('#box-bureau').animate({'bottom':'0px'},800);
                });
            });
            $('#boxclose-bureau').click(function(){
                $('#box-bureau').animate({'bottom':'-600px'},800,function(){
                    $('#overlay-bureau').fadeOut('fast');
                });
            });
        });

Source

<div class="reference"> <a id="activator-werkwijze" class="activator">werkwijze</a> <a id="activator-bureau" class="activator">bureau</a> </div> <div class="box" id="box-bureau"> <a class="boxclose" id="boxclose-bureau">x</a> <div class="slidewrap">Some info...</div> </div> <div class="box" id="box-werkwijze" style="bottom:-300px;"> <a class="boxclose" id="boxclose-werkwijze">x</a> <div class="slidewrap">Some info 2...</div> </div>

[Anas Mosaad]

You may add a specific class name (i.e. current) to the currently displayed box. For example, you would create a function named resetCurrent that selects the current box with the current css class and reset its position or fade it out, then fadeIn your new box.

[fourroses]

i'm a rookie, i can't script myself, just grabbin code from the web. managed to get the fiddle work a bit better.

http://jsfiddle.net/fourroses666/8y7Sr/83/

hope anyone can help.

[fourroses]

new fiddle, it almost works, first two links are ok, others notyet :(
http://jsfiddle.net/fourroses666/8y7Sr/100/