function picview(sourc,breite,hoehe) {
window.open(sourc,"tfa-bild","width=" + breite + ", height=" + hoehe + ", status=1, resizable=1, scrollbars=1"); 
//if (fenster.focus) fenster.focus();
}

function openwin(sourc) {
var einst = eval("\"width=400,height=500,status=1,resizable=1,scrollbars=1"+"\"");
var win = window.open(sourc,"Transitforum Austria-Tirol",einst);
}

function istZahl(n){
s=""+n
var ziffern = "0123456789"
for (var i=0; i<s.length; i++)
 if(ziffern.indexOf(s.charAt(i))<0) return false
return true
}