//Zufallsgenerator
var dateinumber = 24 ; //Anzahl der Dateien
var randomnumber = Math.random() ;
var rand1 = Math.round( (dateinumber-1) * randomnumber) + 1 ;
zupz = new Array
zupz[1] = "zup/pause.gif"
zupz[2] = "zup/psst.gif"
zupz[3] = "zup/hoert_auf.gif"
zupz[4] = "zup/lauter.gif"
zupz[5] = "zup/leise.gif"
zupz[6] = "zup/moritz.gif"
zupz[7] = "zup/extraeinladung.gif"
zupz[8] = "zup/lustig.gif"
zupz[9] = "zup/mitlachen.gif"
zupz[10] = "zup/sicher_fuer_klausur.gif"
zupz[11] = "zup/starke_maenner.gif"
zupz[12] = "zup/endlich_mal_gut.gif"
zupz[13] = "zup/glauben.gif"
zupz[14] = "zup/naechsten_jahr.gif"
zupz[15] = "zup/privatgespraeche.gif"
zupz[16] = "zup/stunde_beenden.gif"
zupz[17] = "zup/runterkommen.gif"
zupz[18] = "zup/we_nicht_dazu_gekommen.gif"
zupz[19] = "zup/niki.gif"
zupz[20] = "zup/wieder_gehen.gif"
zupz[21] = "zup/warten.gif"
zupz[22] = "zup/raum.gif"
zupz[23] = "zup/loesungsbuch.gif"
zupz[24] = "zup/hausaufgaben.gif"
datei = zupz[rand1]

function GE_swapImgRestore() { //v3.0
  var i,x,a=document.GE_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function GE_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.GE_p) d.GE_p=new Array();
    var i,j=d.GE_p.length,a=GE_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.GE_p[j]=new Image; d.GE_p[j++].src=a[i];}}
}

function GE_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=GE_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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