function chkFormular()
{
  //alert("Check");

   if(document.kontakt.vorname.firma == "")
    {
     alert("please enter your company name!");
     document.kontakt.vorname.focus();
     return false;
    }
   if(document.kontakt.name.value == "")
    {
     alert("please enter your name!");
     document.kontakt.name.focus();
     return false;
    }
   if(document.kontakt.email.value == "")
    {
     alert("please enter your email address!");
     document.kontakt.email.focus();
     return false;
    }
   	
}