function CheckAuswahl () {
  for (i = 0; i < document.forms[""+formular+""].Termin.length; ++i)
    if (document.forms[""+formular+""].Termin.options[i].selected == true)
     {

	 if(document.forms[""+formular+""].Termin.options[i].style.textDecoration =="line-through")
	 {
	 document.forms[""+formular+""].submitButtonName.style.visibility="hidden";
	 }
else {
	document.forms[""+formular+""].submitButtonName.style.visibility="visible";
     }
}
}