// confirm("jetzt geht's los...");

// -------------
// Cookie Functions
// -------------

//  Function to return the value of the cookie specified by "name".
//    name - String object containing the cookie name.
//    returns - String object containing the cookie value, or null if
//      the cookie does not exist.
function GetCookie (name) {
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen) {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
      return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break; 
  }
  return null;
}

//  Function to create or update a cookie.
//    name - String object containing the cookie name.
//    value - String object containing the cookie value.  May contain
//      any valid string characters.
//    [expires] - Date object containing the expiration data of the cookie.  If
//      omitted or null, expires the cookie at the end of the current session.
//    [path] - String object indicating the path for which the cookie is valid.
//      If omitted or null, uses the path of the calling document.
//    [domain] - String object indicating the domain for which the cookie is
//      valid.  If omitted or null, uses the domain of the calling document.
//    [secure] - Boolean (true/false) value indicating whether cookie transmission
//      requires a secure channel (HTTPS).  
//
//  The first two parameters are required.  The others, if supplied, must
//  be passed in the order listed above.  To omit an unused optional field,
//  use null as a place holder.  For example, to call SetCookie using name,
//  value and path, you would code:
//
//      SetCookie ("myCookieName", "myCookieValue", null, "/");
//
//  Note that trailing omitted parameters do not require a placeholder.
//
//  To set a secure cookie for path "/myPath", that expires after the
//  current session, you might code:
//
//      SetCookie (myCookieVar, cookieValueVar, null, "/myPath", null, true);
//
function SetCookie (name, value, expires, path, domain, secure) {
	var expires = new Date();
	expires.setTime( expires.getTime() + (24 * 60 * 60 * 1000) * 180 ); // 6 months from now

	document.cookie = name + "=" + escape (value) +
    	((expires) ? "; expires=" + expires.toGMTString() : "") +
    	((path) ? "; path=" + path : "") +
    	((domain) ? "; domain=" + domain : "") +
    	((secure) ? "; secure" : "");
}

// "Internal" function to return the decoded value of a cookie
function getCookieVal (offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
    	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

//  Function to delete a cookie. (Sets expiration date to start of epoch)
//    name -   String object containing the cookie name
//    path -   String object containing the path of the cookie to delete.  This MUST
//             be the same as the path used to create the cookie, or null/omitted if
//             no path was specified when creating the cookie.
//    domain - String object containing the domain of the cookie to delete.  This MUST
//             be the same as the domain used to create the cookie, or null/omitted if
//             no domain was specified when creating the cookie.
function DeleteCookie (name,path,domain) {
  if (GetCookie(name)) {
    document.cookie = name + "=" +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

/*  Examples
	var expdate = new Date ();
	FixCookieDate (expdate); // Correct for Mac date bug - call only once for given Date object!
	expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000) * 180 ); // 6 months from now
	
	var cookieValue = "Werd";
		
	SetCookie ("WTMapCookie", cookieValue , expdate);
	GetCookie ("WTMapCookie")
*/

function setBgTheme( cookieValue )
 {
var expdate = new Date ();
var cookieName = "bgTheme";
// ------------------------
expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000) * 180 );
SetCookie (cookieName, cookieValue, expdate, '/', null, false);
// ------------------------
// confirm(expdate);
 }

function getBgTheme( )
 {
var cookieName = "bgTheme2003";
var cookieValue;
// ------------------------
cookieValue = GetCookie( cookieName );
//confirm( cookieValue );
return( cookieValue );
// ------------------------
 }

function setMiddle( cookieValue )
 {
var expdate = new Date ();
var cookieName = "fMiddle";
// ------------------------
expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000) * 180 );
SetCookie (cookieName, cookieValue, expdate, '/', null, false);
// ------------------------
// confirm(expdate);
 }

function getMiddle( )
 {
var cookieName = "fMiddle";
var cookieValue;
// ------------------------
cookieValue = GetCookie( cookieName );
//confirm( cookieValue );
DeleteCookie( "fMiddle", "/", "www.hotel-worch.de" );
return( cookieValue );
// ------------------------
 }