function switchlayer(Layer_Name)
{
  var GECKO = document.getElementById? 1:0 ;
  var NS = document.layers? 1:0 ;
  var IE = document.all? 1:0 ;
  if (GECKO)
       {document.getElementById(Layer_Name).style.display=
           (document.getElementById(Layer_Name).style.display=='block') ? 'none' : 'block';}
  else if (NS)
       {document.layers[Layer_Name].display=(document.layers[Layer_Name].display=='block') ? 'none' : 'block';}
  else if (IE)
       {document.all[Layer_Name].style.display=(document.all[Layer_Name].style.display=='block') ? 'none' : 'block';}
}



 function sent_form()
 {
        var NAME = document.form1.name.value;
        var FON = document.form1.fon.value;
        var EMAIL = document.form1.email.value;
        var NACHRICHT = document.form1.nachricht.value;
        var CONTROLLMAIL = document.form1.email2.value;
        var UHRZEIT = document.form1.uhrzeit.value;
        zeit = new Date();
          var pak =  Date.parse(zeit);
         //1 Prüfung
if(CONTROLLMAIL != ""){
// Bot!
alert ("Ihre Angaben!");
}
else {
        if (NAME == "" || NAME == " " || NACHRICHT == "" || NACHRICHT == " " || FON == "" || FON == " " || EMAIL == "" || EMAIL == " " || EMAIL.lastIndexOf("@") < "1" || EMAIL.lastIndexOf(".") < "1"){
        window.open("error.php","win1","width=280,height=300,left=372,top=272");
        }
        else
        document.form1.submit();
}}
 function open_file(file)
 {
        window.open(file,"win2","width=550,height=450,left=372,top=272");
}
 function open_Image(file, hoehe, breite)
 {        var b
         hoehe += 190;
         if (!breite)
                { b = 550; } else { b = breite + 190;}
        window.open(file + "&breite=" + breite,"win2","width=" + b + ",height=" + hoehe + ",left=372,top=5");
}
 function open_clip(file)
 {
        window.open(file,"win3","width=300,height=250,left=372,top=272");
}

 function open_clip_max(file)
 {
        window.open(file,"win3","width=500,height=350,left=372,top=272");
}