// Naviscript von Javascript nav_Rahel.htm
// ---------------------------------------------


var ebene // MouseOver parameter für Ebenenwechsel (roll over) 
var ebenealt
var subEbene
var subEbenealt

var e_aktuell; // Durch Click (laden von neuem Content), aktuelle Ebene und Style der Subebene aktivieren
var sub_aktuell;

function reset(e_aktuell, sub_aktuell) {
  layerWechsel(e_aktuell)
  styleWechsel(sub_aktuell)
  // document.forms[0].text1.value = e_aktuell + " " + sub_aktuell
  
  document.getElementById('reset').style.visibility = 'hidden';
}


function styleWechsel(subEbene) {
  if (document.layers) { // Netscape 4
  }
  else if (document.all) { // Internet Explorer 4 
    if (subEbenealt != undefined) document.all[subEbenealt].style.fontWeight = "normal";
    if (subEbene != undefined) document.all[subEbene].style.fontWeight = "bold";
  }
  else if (document.getElementById) { // Neue Browser NC 6
    if (subEbenealt != undefined) document.getElementById(subEbenealt).style.fontWeight = "normal";
    if (subEbene != undefined) document.getElementById(subEbene).style.fontWeight = "bold";
  }  
  subEbenealt = subEbene;
}


function layerWechsel(ebene) {
 document.getElementById('reset').style.visibility = 'visible';
 
    if (document.layers) { // Netscape 4
    if (ebenealt != undefined) document.layers[ebenealt].visibility = 'hide';
    if (ebene != undefined) document.layers[ebene].visibility = 'show';
  }
  else if (document.all) { // Internet Explorer 4 
    if (ebenealt != undefined) document.all[ebenealt].style.visibility = 'hidden';
    if (ebene != undefined) document.all[ebene].style.visibility = 'visible';
  }
  else if (document.getElementById) { // Neue Browser NC 6
    if (ebenealt != undefined) document.getElementById(ebenealt).style.visibility = 'hidden';
    if (ebene != undefined) document.getElementById(ebene).style.visibility = 'visible';
  }  
  ebenealt = ebene;
}

  
function setzeAktiv(aktuelleEbene, subEbene) { // Aktuell aktive Ebene
	e_aktuell = aktuelleEbene;
  sub_aktuell = subEbene;
  // document.forms[0].text1.value = e_aktuell + " " + sub_aktuell
}








//  ----------------------------------------------------------------------------------------------------- Basic Funktionen



//  ----------------------------------------------------------------------------------------------------- 
function popup(url) {
var a=screen.availWidth;
var b=screen.availHeight;
var fenster=window.open(url,"mediafenster","width=555,height=400,status=1");

fenster.moveTo(200,150);
fenster.focus();
}



//  ----------------------------------------------------------------------------------------------------- 
function FensterHoehe () {

  if (document.all) { // Internet Explorer 4
    return document.body.clientHeight;
  }
  else if (document.getElementById) { // Neue Browser NC 6
    return window.innerHeight;
  }
  else if (document.layers) { // Netscape 4
    return window.innerHeight;
  }
}


//  ----------------------------------------------------------------------------------------------------- 
function positionierung (ebene, posX, posY) {

  if (document.all) { // Internet Explorer
    document.all[ebene].style.posLeft = posX;
    document.all[ebene].style.posTop = posY;
  }
  else if (document.getElementById) { // Neue Browser NC 6
    document.getElementById(ebene).style.left = posX;
    document.getElementById(ebene).style.top = posY;
  }
  else if (document.layers) { // Netscape 4
    document.layers[ebene].left = posX
    document.layers[ebene].top = posY
  }

}


//  ----------------------------------------------------------------------------------------------------- 
function sichtbarkeit (ebene, flag) {
  if (flag == 0) {
    if (document.layers) { // Netscape 4
      document.layers[ebene].visibility = "hide";
    }
    else if (document.all) { // Internet Explorer 4
      document.all[ebene].style.visibility = "hidden";
    }
    else if (document.getElementById) { // Neue Browser NC 6
      document.getElementById(ebene).style.visibility = "hidden";
    }  
  }
  if (flag == 1) {
    if (document.layers) { // Netscape 4
      document.layers[ebene].visibility = "show";
    }
    else if (document.all) { // Internet Explorer 4
      document.all[ebene].style.visibility = "visible";
    }
    else if (document.getElementById) { // Neue Browser NC 6
      document.getElementById(ebene).style.visibility = "visible";
    }
  }
  
}
// ------------------------------------------------------------------------------------------------------------------------