function surfto(form) {
var myindex=form.select1.selectedIndex
if (form.select1.options[myindex].value != "0") {
location=form.select1.options[myindex].value;}
}

function tarife(){
x=window.open("preis_leer1.htm","RADIO","width=255,height=620,top=0,left=0,resizable=no,scrollbars=no,menubar=no,toolbar=no,status=no,location=no")
}