// Rollover-Functions
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


// Fürhende Nullen einfügen
function InsertNull(i)
{
  var s = String(i);
  while (s.length < 4) s = "0" + s;
  return s;
}


// Bildanzeige
function ShowImg(ImgID, idx)
{
  var i;
  var s;
  var count = Images[ImgID].length-1;
  
  s = document.getElementById("image").src;
  i = Number(s.substr(s.length-8,4));
  
  switch (idx)
  {
    case 1: 
      i = 1;                // erstes Bild
      break; 
    case 2:
      if (i > 1) i--;      // vorheriges Bild
      break;
    case 3: 
      if (i < count) i++;  // nächstes Bild
      break;
    case 4:
      i = count;           // letztes Bild
      break;
  }
  document.getElementById("image").src = s.slice(0,s.length-8) + InsertNull(i) + ".jpg";
  document.getElementById("imagename").innerHTML = Images[ImgID][i];
}

// Bildanzeige beim Laden der Seite
function SetImage()
{
  var s = window.location.search;
  var i;
  ImgID = parseInt(s.slice(s.indexOf("&")+7,s.length));

  s = s.slice(11,s.indexOf("&"));
  i = Number(s.substr(s.length-8,4));
  document.getElementById("image").src = "images/" + s;
  document.getElementById("imagename").innerHTML = Images[ImgID][i];
  
  MM_preloadImages('images/button_startseite2.gif','images/button_impressum2.gif','images/button_links2.gif','images/button_kontakt2.gif');
}

// Slideshow starten/stoppen
function StartStopSL()
{ 
  if (SL == 0)
  {
    SL = 1;
	SLa = window.setInterval("ShowImg(ImgID,3)", 5000);
	ShowImg(ImgID,3);
  }
  else
  {
    SL = 0;
	window.clearInterval(SLa);
  }
}