function formel1 ()
{
  var win1;
  win1=window.open ("formel1.html","formel1","width=350,height=100,dependent=yes");
}

function formel2 ()
{
  var win2;
  win2=window.open ("formel2.html","formel2","width=350,height=100,dependent=yes");
}

function formel3 ()
{
  var win3;
  win3=window.open ("formel3.html","formel3","width=350,height=100,dependent=yes");
}

function formel3a ()
{
  var win3a;
  win3a=window.open ("formel3a.html","formel3a","width=350,height=100,dependent=yes");
}

function formel4 ()
{
  var win4;
  win4=window.open ("formel4.html","formel4","width=350,height=100,dependent=yes");
}

function formel5 ()
{
  var win5;
  win5=window.open ("formel5.html","formel5","width=350,height=100,dependent=yes");
}

function formel6 ()
{
  var win6;
  win6=window.open ("formel6.html","formel6","width=350,height=100,dependent=yes");
}

function formel7 ()
{
  var win7;
  win7=window.open ("formel7.html","formel7","width=350,height=100,dependent=yes");
}

function formel8 ()
{
  var win8;
  win8=window.open ("formel8.html","formel8","width=350,height=100,dependent=yes");
}

function formel9 ()
{
  var win9;
  win9=window.open ("formel9.html","formel9","width=350,height=100,dependent=yes");
}

function formel10 ()
{
  var win10;
  win10=window.open ("formel10.html","formel10","width=350,height=100,dependent=yes");
}

function formel11 ()
{
  var win11;
  win11=window.open ("formel11.html","formel11","width=350,height=100,dependent=yes");
}

function startw ()
{
  var startw;
  startw=window.open ("startwert.html","startw","width=350,height=100,dependent=yes");
}

function iteriern ()
{
  var iteriern;
  iteriern=window.open ("iteriern.html","iteriern","width=350,height=100,dependent=yes");
}

function iteriert ()
{
  var iteriert;
  iteriert=window.open ("iteriert.html","iteriert","width=350,height=100,dependent=yes");
}

function folge ()
{
  var folge;
  folge=window.open ("folge.html","folge","width=600,height=400,dependent=yes,scrollbars=yes");
}

function loesung1 ()
{
  var loesung1;
  loesung1=window.open ("loesung1.html","loesung1","width=600,height=400,dependent=yes,scrollbars=yes");
}

function ableitun ()
{
  var ableitun;
  ableitun=window.open ("ableitun.html","ableitun","width=800,height=400,dependent=yes,scrollbars=yes");
}

function quadloes ()
{
  var quadloes;
  quadloes=window.open ("quadloes.html","quadloes","width=600,height=400,dependent=yes,scrollbars=yes");
}

function polynomd ()
{
  var polynomd;
  polynomd=window.open ("polynomd.html","polynomd","width=600,height=400,dependent=yes,scrollbars=yes");
}

function vieta ()
{
  var vieta;
  vieta=window.open ("vieta.html","vieta","width=600,height=400,dependent=yes,scrollbars=yes");
}

function kette ()
{
  var kette;
  kette=window.open ("ableitun.html#kette","kette","width=800,height=400,dependent=yes,scrollbars=yes");
}

function beweis ()
{
  var beweis;
  beweis=window.open ("beweis.html","beweis","width=600,height=400,dependent=yes,scrollbars=yes");
}

function iter ()
  {
    var parameter,startwert;
    startwert=window.document.forms[0].elements[0].value;
    parameter=window.document.forms[0].elements[1].value;
    if (startwert=="")
    {
      startwert=0.5;
    }
    if (parameter!="")
    {
      window.document.A1.iterieren(startwert,parameter);
    }
    else
    {
      alert ("Du musst schon einen Parameterwert angeben.");
    }
  }