// Email vor Spammern schützen!

	function protectmail(name, address, link, subject, body) {
		
		document.write("<a href='mailto:" + name + "@" + address + "?subject=" + subject + "&body=" + body + "' class=\"mailtoLink\">" + link + "</a>");
	}
	
	
	
// last-modified einfügen

	function lastModified_de (date) {
		
		var x = new Date (date);
		var d = x.getDate();
		var m = x.getMonth() + 1;
		var y = x.getFullYear();
		
		var style = "<style type='text/css'>p.lastmod {font-size:90%; color:#646eaf; padding-top:30px;}</style>";
		document.write(style + "<p class='lastmod'>Stand vom: " + d + "." + m + "." + y + "</p>");
	}
	

	function lastModified_en (date) {

		var x = new Date (date);
		var d = x.getDate();
		var m = x.getMonth() + 1;
		var y = x.getFullYear();
		
		var style = "<style type='text/css'>p.lastmod {font-size:90%; color:#646eaf; padding-top:30px;}</style>";
		document.write(style + "<p class='lastmod'>Last update: " + d + "." + m + "." + y + "</p>");
		
	}	

function insertTag(tag, elem)
{
	switch(tag)
	{
		case "h3":  document.getElementById(elem).value = document.getElementById(elem).value + "<h3></h3>"; break;	
		case "f":  document.getElementById(elem).value = document.getElementById(elem).value + "<strong></strong>"; break;	
		case "i":  document.getElementById(elem).value = document.getElementById(elem).value + "<em></em>"; break;
		case "a":  document.getElementById(elem).value = document.getElementById(elem).value + "<a href=%Adresse% target=%_blank%>Link</a>"; break;
		case "ul": document.getElementById(elem).value = document.getElementById(elem).value + "<ul><li>Listenelement</li></ul>"; break;		
		case "ol": document.getElementById(elem).value = document.getElementById(elem).value + "<ol><li>Listenelement</li></ol>"; break;		
	}
}	


// Hinweise bei der Artsuche im Arteninformationssystem (zum Beispiel) ein/ausblenden
function toggle(id, idtip, name) {

	if (document.getElementById(id).style.display=='') {
		flag = true;
	} else if (document.getElementById(id).style.display=='none') {
		flag = false;	
	}
	
	// alle ausschalten 
	var arr = document.getElementsByName(name);

	for (i=0; i<arr.length; i++) {
		document.getElementById(idtip.concat(i)).style.display='none';	
	}

	// den einen wegschalten, wenn er offen war, sonst zuschalten
	if (flag == true)
		document.getElementById(id).style.display='none';
	else
		document.getElementById(id).style.display='';

}


// Email-Validierung
// Code: Sandeep V. Tamhankar (stamhankar@hotmail.com)
function emailCheck (emailStr, lang) {

// KB zugefuegt: Sprache festlegen, damit individuellere Fehlermeldungen ausgegeben werden koennen
var language = lang;
	
// 1 = checks that address ends in a 2-letter country plus other often used TLD	
var checkTLD=1;  

/* list of known TLDs that an e-mail address must end with. */
var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* pattern 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 +")*$");

// START CHECKING....

/* 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. */
	if ("en" == language)
	{
		alert("Email address seems incorrect (check @ and .'s)");
	} 
	else
	{
		alert("Die Email-Adresse scheint nicht korrekt zu sein (bitte überprüfen Sie die @ und .'s)");	
	}
	return false;
}

var user=matchArray[1];
var domain=matchArray[2];

// Start by checking that only basic ASCII characters are in the strings (0-127).
for (i=0; i<user.length; i++) 
{
	if (user.charCodeAt(i)>127) 
	{
		if ("en" == language)
		{
			alert("The username contains invalid characters.");
		}
		else
		{
			alert("Der Anwendername besitzt ungültige Zeichen!");
		}
		return false;
   	}
}
for (i=0; i<domain.length; i++) 
{
	if (domain.charCodeAt(i)>127) 
	{
		if ("en" == language)
		{
			alert("The domain name contains invalid characters.");
		}
		else
		{
			alert("Die Domäne (nach @) besitzt ungültige Zeichen!");
		}
		return false;
   	}
}

// See if "user" is valid 
if (user.match(userPat)==null) 
{
	// user is not valid
	if ("en" == language)
	{
		alert("The username doesn't seem to be valid.");
	}
	else
	{
		alert("Der Benutzername scheint nicht gültig zu sein.");	
	}
	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) 
		{
			if ("en" == language)
			{
				alert("Destination IP address is invalid!");
			}
			else
			{
				alert("Die angegebene IP Adresse ist ungültig!");
			}
			return false;
   		}
	}
	return true;
}

// Domain is symbolic name.  Check if it's valid.
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) 
{
	if (domArr[i].search(atomPat)==-1) 
	{
		if ("en" == language)
		{
			alert("The domain name does not seem to be valid.");
		}
		else
		{
			alert("Der Domänenname scheint ungültig zu sein.");
		}
		return false;
   	}
}

/* domain name seems valid, but now make sure that it ends in a known top-level domain (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding the domain or country. */
if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) 
{
	if ("en" == language)
	{
		alert("The address must end in a well-known domain or two letter ");
	}
	else
	{
		alert("Die Adresse muss mit einem bekannten Suffix enden ");	
	}
	return false;
}

// Make sure there's a host name preceding the domain.
if (len<2)  
{
	if ("en" == language)
	{
		alert("This address is missing a hostname!");
	}
	else
	{
		alert("Der Adresse fehlt der Hostname!");		
	}
	return false;
}

// If we've gotten this far, everything's valid!
return true;
}


/* ------------------------------- */
/* ----- Simple Browserinfos ----- */
/* ------------------------------- */
var Browser = {
	version: parseInt(navigator.appVersion),
	isFirefox: navigator.userAgent.indexOf("Firefox") != -1, 
	isMicrosoft: navigator.userAgent.indexOf("MSIE") != -1,	
	isSafari: navigator.userAgent.indexOf("Safari") != -1,
	isOpera: navigator.userAgent.indexOf("Opera") != -1,
	engine: ""
};

if (Browser.isFirefox)				{Browser.engine = ("Firefox"); }
else if (Browser.isMicrosoft)	{Browser.engine = ("MS"); }
else if (Browser.isSafari)		{Browser.engine = ("Safari"); }
else if (Browser.isOpera)			{Browser.engine = ("Opera"); }
else {Browser.engine = "unknown"; }


// ---------------------------------------------------------------
// einfache Browser-Kontrolle - ohne Version etc, veraltet, aber noch immer in manchen Dateien benutzt (z.B. Birdrace)
function getBrowser()
{
	var agent = navigator.userAgent;
	var b = "";
	if (agent.search(/Firefox/)!=-1)		{ b = "Firefox"; }
	else if (agent.search(/MSIE/)!=-1)		{ b = "IE"; }
	else if (agent.search(/Safari/)!=-1)	{ b = "Safari"; }
	else if (agent.search(/Opera/)!=-1)		{ b = "Opera"; }
	
	return b;
}


// ---------------------------------------------------------------
// Umlaute en- und decodieren
var Umlaut = {

	// public method for url encoding
	encode : function (string) {
//		string = string.replace(/\r\n/g,"\n");
		string = string.replace(/Ä/g,"&Auml;");
		string = string.replace(/ä/g,"&auml;");
		string = string.replace(/Ö/g,"&Ouml;");
		string = string.replace(/ö/g,"&ouml;");
		string = string.replace(/Ü/g,"&Uuml;");
		string = string.replace(/ü/g,"&uuml;");
		string = string.replace(/ß/g,"&szlig;");
//		string = string.replace(/\'/g,"&prime;");
		string = string.replace(/</g,"&lt;");
		string = string.replace(/>/g,"&gt;");
		var utftext = string;

		return utftext;
	},

	// public method for url decoding
	decode : function (string) {

		string = string.replace(/&Auml;/g,"Ä");
		string = string.replace(/&auml;/g,"ä");
		string = string.replace(/&Ouml;/g,"Ö");
		string = string.replace(/&ouml;/g,"ö");
		string = string.replace(/&Uuml;/g,"Ü");
		string = string.replace(/&uuml;/g,"ü");
		string = string.replace(/&szlig;/g,"ß");
		string = string.replace(/&prime;/g,"'");		
		string = string.replace(/&lt;/g,"<");
		string = string.replace(/&gt;/g,">");

		return string;
	}
}