function ImageGalleryPopup(sPicture, sDescription, sWidth, sHeight)
 {
 if ((sPicture != "") && (sWidth != "") && (sHeight != ""))
 {
     bigWin = window.open("","bigwin","width=" + eval(parseInt(sWidth) + 10) + ",height=" + eval(parseInt(sHeight) + 80) + ",screenX=30,screenY=30,toolbar=no,menubar=0,directories=0,location=0,status=0,scrollbars=0,resizeable=0");
     bigWin.document.close();
     bigWin.document.write("<HE"+"AD><TI"+"TLE>ZOOM</TI"+"TLE><link rel='stylesheet' href='scripts/main.css' type='text/css'></HE"+"AD>");
     bigWin.document.write("<BO"+"DY  bgcolor='#ffffff' topmargin='0' leftmargin='0' marginheight='0' marginwidth='0'><center>");
     bigWin.document.write('<A HREF="JavaScript:self.close()"><IMG SRC='+sPicture+' WIDTH=' + sWidth + ' HEIGHT=' + sHeight + ' ALT="" border="0" vspace="5"></a></center>');
     bigWin.document.write('<center><table width=80% height=30 border="0"><tr><td height=5 align=center valign=middle><img src="images/trans.gif" height="5"></td></tr><tr><td height=20 align=center valign=middle><font face="Arial, Helvetica" size=2 color="#333333">' + sDescription + '</font><br />');
     bigWin.document.write('<a href="javascript:self.close()"><font face="Arial, Helvetica" size=1 color="#333333">Fenster schliessen</font></a></td></tr></table></center>');
     bigWin.document.write("</BO"+"DY></HT"+"ML>");
     bigWin.focus();
 }
 }
 
function chkFormular () {
  if (document.Formular.Vorname.value == "") {
    alert("Bitte Ihren Vornamen eingeben!");
    document.Formular.Vorname.focus();
    return false;
  }
  if (document.Formular.Nachname.value == "") {
    alert("Bitte Ihren Nachnamen eingeben!");
    document.Formular.Nachname.focus();
    return false;
  }
    if (document.Formular.PLZ.value == "") {
    alert("Bitte Ihre PLZ eingeben!");
    document.Formular.PLZ.focus();
    return false;
  }
    if (document.Formular.Ort.value == "") {
    alert("Bitte Ihren Wohnort eingeben!");
    document.Formular.Ort.focus();
    return false;
  }
    if (document.Formular.Land.value == "") {
    alert("Bitte Ihr Land eingeben!");
    document.Formular.Land.focus();
    return false;
  }
    if (document.Formular.eMail.value == "") {
    alert("Bitte Ihre E-Mail Adresse eingeben!");
    document.Formular.eMail.focus();
    return false;
  }
      if (document.Formular.Nachricht.value == "") {
    alert("Bitte Ihre Nachricht eingeben!");
    document.Formular.Nachricht.focus();
    return false;
  }
}