var curReiter='idee';
var oldReiter="";
function showdiv(divname)
{
  if (divname != 'current') {
     oldReiter=document.getElementById('current').innerHTML;
     oldReiter = oldReiter.slice(oldReiter.indexOf(">")+1,oldReiter.lastIndexOf("</"));

     document.getElementById('current').id = curReiter;
     curReiter=divname;
     document.getElementById(divname).id = 'current';
     
     document.getElementById('header').style.visibility = 'visible';

      switch (divname) {
        case "idee":
             document.getElementById('div_idee').style.visibility = 'visible';
             document.getElementById('div_anleitung').style.visibility = 'hidden';
             document.getElementById('div_mapdiv').style.visibility = 'hidden';
             document.getElementById('map').style.visibility = 'hidden';
             document.getElementById('div_batchdiv').style.visibility = 'hidden';
             document.getElementById('batchmap').style.visibility = 'hidden';
             document.getElementById('div_download').style.visibility = 'hidden';
             document.getElementById('div_auswertung').style.visibility = 'hidden';
             document.getElementById('div_about').style.visibility = 'hidden';
             document.getElementById('stat_result_container').style.visibility = 'hidden';
             document.getElementById('browserinfo').style.visibility = 'hidden';

          break;
        case "anleitung":
             document.getElementById('div_idee').style.visibility = 'hidden';
             document.getElementById('div_anleitung').style.visibility = 'visible';
             document.getElementById('div_mapdiv').style.visibility = 'hidden';
             document.getElementById('map').style.visibility = 'hidden';
             document.getElementById('div_batchdiv').style.visibility = 'hidden';
             document.getElementById('batchmap').style.visibility = 'hidden';
             document.getElementById('div_download').style.visibility = 'hidden';
             document.getElementById('div_auswertung').style.visibility = 'hidden';
             document.getElementById('div_about').style.visibility = 'hidden';
             document.getElementById('stat_result_container').style.visibility = 'hidden';
             document.getElementById('browserinfo').style.visibility = 'visible';

          break;
        case "mapdiv":
             document.getElementById('div_idee').style.visibility = 'hidden';
             document.getElementById('div_anleitung').style.visibility = 'hidden';
             document.getElementById('div_mapdiv').style.visibility = 'visible';
             document.getElementById('map').style.visibility = 'visible';
             document.getElementById('div_batchdiv').style.visibility = 'hidden';
             document.getElementById('batchmap').style.visibility = 'hidden';
             document.getElementById('div_download').style.visibility = 'hidden';
             document.getElementById('div_auswertung').style.visibility = 'hidden';
             document.getElementById('div_about').style.visibility = 'hidden';
             document.getElementById('stat_result_container').style.visibility = 'hidden';
             document.getElementById('browserinfo').style.visibility = 'hidden';
             if (oldReiter=="Upload") {        //Nachführen des Kartenausschnitts
                map.clearOverlays();
                loadedOids = new Array();
                firstLoading=true;
                map.setCenter(batchmap.getCenter(), batchmap.getZoom());
                getAreaFilterParameter();
             }

          break;
          
        case "batchdiv":
             document.getElementById('div_idee').style.visibility = 'hidden';
             document.getElementById('div_anleitung').style.visibility = 'hidden';
             document.getElementById('div_mapdiv').style.visibility = 'hidden';
             document.getElementById('map').style.visibility = 'hidden';
             document.getElementById('div_batchdiv').style.visibility = 'visible';
             document.getElementById('batchmap').style.visibility = 'visible';
             document.getElementById('div_download').style.visibility = 'hidden';
             document.getElementById('div_auswertung').style.visibility = 'hidden';
             document.getElementById('div_about').style.visibility = 'hidden';
             document.getElementById('stat_result_container').style.visibility = 'hidden';
             document.getElementById('browserinfo').style.visibility = 'hidden';
             if (oldReiter=="Karte") {    //Nachführen des Kartenausschnitts
                batchmap.setCenter(map.getCenter(), map.getZoom());
             }

          break;
        case "download":
             document.getElementById('div_idee').style.visibility = 'hidden';
             document.getElementById('div_anleitung').style.visibility = 'hidden';
             document.getElementById('div_mapdiv').style.visibility = 'hidden';
             document.getElementById('map').style.visibility = 'hidden';
             document.getElementById('div_batchdiv').style.visibility = 'hidden';
             document.getElementById('batchmap').style.visibility = 'hidden';
             document.getElementById('div_download').style.visibility = 'visible';
             document.getElementById('div_auswertung').style.visibility = 'hidden';
             document.getElementById('div_about').style.visibility = 'hidden';
             document.getElementById('stat_result_container').style.visibility = 'hidden';
             document.getElementById('browserinfo').style.visibility = 'hidden';

          break;
        case "auswertung":
             //Statistik berechnen:
             document.getElementById('div_idee').style.visibility = 'hidden';
             document.getElementById('div_anleitung').style.visibility = 'hidden';
             document.getElementById('div_mapdiv').style.visibility = 'hidden';
             document.getElementById('map').style.visibility = 'hidden';
             document.getElementById('div_batchdiv').style.visibility = 'hidden';
             document.getElementById('batchmap').style.visibility = 'hidden';
             document.getElementById('div_download').style.visibility = 'hidden';
             document.getElementById('div_auswertung').style.visibility = 'visible';
             document.getElementById('div_about').style.visibility = 'hidden';
             document.getElementById('stat_result_container').style.visibility = 'visible';
             document.getElementById('browserinfo').style.visibility = 'hidden';

          break;
        case "about":
             document.getElementById('div_idee').style.visibility = 'hidden';
             document.getElementById('div_anleitung').style.visibility = 'hidden';
             document.getElementById('div_mapdiv').style.visibility = 'hidden';
             document.getElementById('map').style.visibility = 'hidden';
             document.getElementById('div_batchdiv').style.visibility = 'hidden';
             document.getElementById('batchmap').style.visibility = 'hidden';
             document.getElementById('div_download').style.visibility = 'hidden';
             document.getElementById('div_auswertung').style.visibility = 'hidden';
             document.getElementById('div_about').style.visibility = 'visible';
             document.getElementById('stat_result_container').style.visibility = 'hidden';
             document.getElementById('browserinfo').style.visibility = 'hidden';

          break;
        default:
          break;
      }

  }   //end if


}  //end function