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

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


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



function positionierung (ebene, posX, posY) {
  if (document.layers) { // Netscape 4
    document.layers[ebene].left = posX
    document.layers[ebene].top = posY
  }
  else if (document.all) { // Internet Explorer 4
    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;
  }
}


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";
    }
  }
  
}

// ------------------------------------------------------------------------------------------------------------------------