function showContent(id)
{
  id = this.href.split('#')[1];
  //hide every content part
  controls = ['qualifications', 'aboutme', 'socialnetworks', 'contact', 'contactform', 'impressum', 'datenschutz', 'referenzen']
  controls.each(
    function(e) {
      if(e != id)
      {
        //remove active class from menu items
        if($('nav-' + e) != null) { 
          $('nav-' + e).removeClassName('active'); 
        }
        //fade out active content element
        if($(e).style.display != 'none') 
        {
          Effect.Fade(e,{duration:0.3, queue: { position: 'end', scope: 'menu', limit: 2 }});
        }
      }            
    }
  );  

  if($(id).style.display == 'none')
  {
    //add active class element    
    if($("nav-" + id)!=null)
    {
      $("nav-" + id).addClassName('active');        
    }
    
    Effect.Appear(id,{duration:0.1, queue: { position: 'end', scope: 'menu', limit: 2 }});
    pageTracker._trackPageview("/content/" + id);
  }
  return false;
}    

function initContent()
{
  controls = ['qualifications', 'aboutme', 'socialnetworks', 'contact', 'contactform', 'impressum', 'datenschutz', 'referenzen']
  if(top.location.href.match("#"))
	{
	  contentId = top.location.href.split('#')[1];
	  controls.each(
	   function(e) {
	     
	     if(e != contentId)
	     {
	       $(e).style.display = 'none';
	     }
	     if($('nav-' + e) != null) { 
          $('nav-' + e).removeClassName('active'); 
        }
	     if(e == contentId)
	     {
         if($('nav-' + e) != null) { 
	         $("nav-" + contentId).addClassName('active');
	       }
	       $(contentId).style.display = 'block';
	     }
     }
	  );
	} 
	else
	{
	  controls.each(
	    function(e) {
       $(e).style.display = 'none';
	    }
	  );
	  $('aboutme').style.display = 'block';
   }
}