var ec=1;

function activelayer (subnav) {
  document.getElementById('unte_l').style.visibility='hidden';
  document.getElementById('leis_l').style.visibility='hidden';
  document.getElementById('fuhr_l').style.visibility='hidden';
  document.getElementById('qual_l').style.visibility='hidden';

  
  document.getElementById('home').src='images/nav/home.gif';
  document.getElementById('unte').src='images/nav/unte.gif';
  document.getElementById('leis').src='images/nav/leis.gif';
  document.getElementById('fuhr').src='images/nav/fuhr.gif';
  document.getElementById('qual').src='images/nav/qual.gif';
  document.getElementById('refe').src='images/nav/refe.gif';
  document.getElementById('news').src='images/nav/news.gif';
  
  if(subnav && subnav != 'out') {
    document.getElementById(subnav).src='images/nav/'+subnav+'1.gif';
    if(subnav == 'unte' || subnav == 'leis' || subnav == 'fuhr' || subnav == 'qual') {
      document.getElementById(subnav+'_l').style.visibility='visible';
    }
  }
}

function entwicklung(aktion,eid) {
  jahre = new Array(0,1903,1928,1946,1951,1964,1978,1992,1996,1997,1998,1999,2000,2001,2002,2003,2006,2007,2008,2009,2010);
  id=eid.substr(1);
  if(aktion=='click') {
    document.getElementById('d'+ec).className='entwickl';
    document.getElementById('d' + jahre[ec]).style.visibility='hidden';
    ec=id;
    document.getElementById('d'+ec).className='entwicklhover';
    document.getElementById('d' + jahre[ec]).style.visibility='visible';
    document.getElementById('gimage').src='images/content/entwicklung/' + jahre[ec] + '.jpg';
  }
    /*if(aktion=='click') { 
      for (i=1;i < jahre.length;i++) {
        document.getElementById('d' + jahre[i]).style.visibility='hidden';
      }
    }*/
    
    if(aktion=='over') {
      document.getElementById(eid).className='entwicklhover';
    } else if(aktion=='out' && ec != id) {
      document.getElementById(eid).className='entwickl';
    }
    
    
  /*if(aktion=='click') {
    document.getElementById(eid).src='images/content/entwicklung/' + jahre[ec] + '_1.gif';
    document.getElementById('d' + jahre[ec]).style.visibility='visible';
    document.getElementById('gimage').src='images/content/entwicklung/' + jahre[ec] + '.jpg';
  }*/
}

function WindowWidth() {
 if (window.innerWidth) return window.innerWidth;
 else if (document.body && document.body.offsetWidth) return document.body.offsetWidth;
 else return 0;
}

function WindowRefresh() {
 if (WWidth != WindowWidth()) { window.history.go(0); }
}

if(!window.WWidth && window.innerWidth) {
  window.onresize = WindowRefresh;
  WWidth = WindowWidth();
}