/*
		1.1.2.1 eingedeutscht und leeres email-feld ermöglicht; hde
		1.1.2: Fixed a bug where trailing . in e-mail address was passing
	            (the bug is actually in the weak regexp engine of the browser; I
	            simplified the regexps to make it work).
	   	1.1.1: Removed restriction that countries must be preceded by a domain,
	            so abc@host.uk is now legal.  However, there's still the
	            restriction that an address must end in a two or three letter
	            word.
	     1.1: Rewrote most of the function to conform more closely to RFC 822.
	     1.0: Original  */

//	<!-- This script and many more are available free online at -->
//	<!-- The JavaScript Source!! http://javascript.internet.com -->

//	<!-- Begin

	function emailCheck (emailStr) {

		// das email feld darf auch leer bleiben. ist etwas eingetragen wird auf gültigkeit geprüft.
		if (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("Ihre eMail-Adresse ist nicht korrekt.\nBitte überprüfen Sie Ihre Eingabe auf '@' und '.'.")
				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("Der Username in der eMail-Adresse ist nicht gültig.")
			    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("Die IP-Adresse Ihrer eMail-Adreese ist ungültig!")
					return false
				    }
			    }
			    return true
			}

			// Domain is symbolic name
			var domainArray=domain.match(domainPat)
			if (domainArray==null) {
				alert("Der Domain-Name Ihrer eMail-Adreese ist ungültig.")
			    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("Die eMail-Adresse muss eine gütige Domain haben (z.B. .de, .org oder .com.")
			   return false
			}

			// Make sure there's a host name preceding the domain.
			if (len<2) {
			   var errStr="Ihre eMail-Adresse hat keinen Hostname!"
			   alert(errStr)
			   return false
			}
		}
		// If we've gotten this far, everything's valid!
		return true;

	}
	//  End -->



/////////////////////////////////// open window function 

//-- variablen fuer fensterposition 
var winl = 0;
var wint = 0;

//-- Setzen der Parameter fuer Groesse und Position
//var param = '';
//param += 'width=350,height=500';
//param += ',top='+wint+',left='+winl+'';
//param += ',scrollbars=AUTO';
var param = 'toolbar=no,location=no,scrolling=yes,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=490,height=340';


function openWindow(url)
{	
	//-- oeffnen des Fensters
	NewsWindow = window.open(url,'POPUP',param);
	//-- setzen des focus auf das geoeffnete Fenster
	NewsWindow.focus();
	return;
}