function setdate() {
  var Today = new Date();
  var currentDate = new Date();
  var currentDay = currentDate.getDate()-1;
  var nextDay = currentDate.getDate();
  var currentMonth = currentDate.getMonth();
  var nextMonth = currentDate.getMonth()+1;
  var currentYear = currentDate.getFullYear()-2007;
  var nextYear = currentYear;
  if ( nextDay == 31 ) { 
    nextDay = 0;
    if ( nextMonth == 12 ) { nextMonth = 0; nextYear = nextYear+1; }
  };
  document.reservierungsanfrage.start_day.options[currentDay].selected=true;
  document.reservierungsanfrage.start_month.options[currentMonth].selected=true;
  document.reservierungsanfrage.start_year.options[currentYear].selected=true;
  document.reservierungsanfrage.end_day.options[nextDay].selected=true;
  document.reservierungsanfrage.end_month.options[currentMonth].selected=true;
  document.reservierungsanfrage.end_year.options[nextYear].selected=true;
}
function highlight() {
  document.getElementById("highlight").style.backgroundColor = "#2A3B6C";
  document.getElementById("highlight").style.color = "#FFFFFF";
}
function check_form_de(form) {
  var ErrMsg = 'Hinweis:\n\n';
  var FormOK = 1;
  if (form.name.value == '') {
    ErrMsg = ErrMsg + 'Bitte füllen Sie das Feld "Name" aus.\n';
    FormOK = 0;
  }
  if (form.email.value == '' && form.telefon.value == '' && form.fax.value == '') {
    ErrMsg = ErrMsg + 'Bitte füllen Sie unter "Bitte kontaktieren Sie mich via" eines der drei Felder aus.';
    FormOK = 0;
  }
  if (form.email.value) {
    if (!emailCheck(form.email.value)) {
      ErrMsg = ErrMsg + 'Bitte überprüfen Sie Ihre angegebene EMail-Adresse.';
      FormOK = 0;
    }
  }
  if (FormOK == 0) {
    alert(ErrMsg);
    return false;
  } else {
    form.submit();
  }
}
function check_form_en(form) {
  var ErrMsg = 'Advice:\n\n';
  var FormOK = 1;
  if (form.name.value == '') {
    ErrMsg = ErrMsg + 'Please fill out the field "Name".\n';
    FormOK = 0;
  }
  if (form.email.value == '' && form.telefon.value == '' && form.fax.value == '') {
    ErrMsg = ErrMsg + 'Please fill out one of the three fields underneath "Please contact me via".';
    FormOK = 0;
  }
  if (form.email.value) {
    if (!emailCheck(form.email.value)) {
      ErrMsg = ErrMsg + 'Please check your email address.';
      FormOK = 0;
    }
  }
  if (FormOK == 0) {
    alert(ErrMsg);
    return false;
  } else {
    form.submit();
  }
}

function emailCheck (emailStr) {
/* The following pattern is used to check if the entered e-mail address
   fits the user@domain format.  It also is used to separate the username
   from the domain. */
  var emailPat=/^(.+)@(.+)$/
/* The following string represents the pattern for matching all special
   characters.  We don't want to allow special characters in the address. 
   These characters include ( ) < > @ , ; : \ " . [ ]    */
  var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
/* The following string represents the range of characters allowed in a 
   username or domainname.  It really states which chars aren't allowed. */
  var validChars="\[^\\s" + specialChars + "\]"
/* The following pattern applies if the "user" is a quoted string (in
   which case, there are no rules about which characters are allowed
   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
  var quotedUser="(\"[^\"]*\")"
/* The following pattern applies for domains that are IP addresses,
   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
   e-mail address. NOTE: The square brackets are required. */
  var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
/* The following string represents an atom (basically a series of
   non-special characters.) */
  var atom=validChars + '+'
/* The following string represents one word in the typical username.
   For example, in john.doe@somewhere.com, john and doe are words.
   Basically, a word is either an atom or quoted string. */
  var word="(" + atom + "|" + quotedUser + ")"
// The following pattern describes the structure of the user
  var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
/* The following pattern describes the structure of a normal symbolic
   domain, as opposed to ipDomainPat, shown above. */
  var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
/* Finally, let's start trying to figure out if the supplied address is
   valid. */
/* Begin with the coarse pattern to simply break up user@domain into
   different pieces that are easy to analyze. */
  var matchArray=emailStr.match(emailPat)
  if (matchArray==null) {
  /* Too many/few @'s or something; basically, this address doesn't
     even fit the general mould of a valid e-mail address. */
//  	alert("Email address seems incorrect (check @ and .'s)")
  	return false
  }
  var user=matchArray[1]
  var domain=matchArray[2]
// See if "user" is valid 
  if (user.match(userPat)==null) {
    // user is not valid
//    alert("The username doesn't seem to be valid.")
    return false
  }
/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
  var IPArray=domain.match(ipDomainPat)
  if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
//	        alert("Destination IP address is invalid!")
		return false
	    }
    }
    return true
  }
// Domain is symbolic name
  var domainArray=domain.match(domainPat)
  if (domainArray==null) {
//	  alert("The domain name doesn't seem to be valid.")
      return false
  }
/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */
/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
  var atomPat=new RegExp(atom,"g")
  var domArr=domain.match(atomPat)
  var len=domArr.length
  if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
//   alert("The address must end in a three-letter domain, or two letter country.")
   return false
  }

// Make sure there's a host name preceding the domain.
  if (len<2) {
   var errStr="This address is missing a hostname!"
//   alert(errStr)
   return false
  }
// If we've gotten this far, everything's valid!
  return true;
}