function flipthis(id){
    if(document.getElementById(id)){
        if(document.getElementById(id).style.display=='none'){
            document.getElementById(id).style.display='block';
        } else {
            document.getElementById(id).style.display='none';
        }
    } else {
        alert('Id does not exist!')
    }
}

function checkchangepasswordform(me) {
	
    resetfieldclasses(me);
	
	if (me.newpassword.value==''){alert('Angiv venligst et nyt password.'); redalert(me.newpassword); return false;}
    if (me.newpassword.value!=me.newpassword2.value){alert('De to password skal være ens.'); return false;}
	
	me.submit();

}

function checkcontactform(me) {
			resetfieldclasses(me);
	
	if (me.navn.value==''){alert('Angiv venligst dit navn.'); redalert(me.navn); return false;}
	if (!emailCheck(me.email.value)){alert('Din mailadresse er ikke gyldig.'); redalert(me.email); return false;}
    if (me.beskrivelse.value==''){alert('Angiv venligst en beskrivelse.'); redalert(me.beskrivelse); return false;}
	
	me.submit();

}

function checkregistrationform(me){
	if (me.kaldenavn.value==''){alert('Angiv venligst dit kaldenavn.'); redalert(me.kaldenavn); return false;}
	if (me.sex.value==''){alert('Angiv venligst din køn.'); return false;}
	if (!emailCheck(me.email.value)){alert('Din mailadresse er ikke gyldig.'); redalert(me.email); return false;}
        if (!me.termsaccept.checked){alert('Venligst accepter vores vilkår og betingelser.'); return false;}
    	me.submit();
}

function checkprofileform(me){
	if (!emailCheck(me.fEmail.value)){alert('Din mailadresse er ikke gyldig.'); redalert(me.fEmail); return false;}
    	me.submit();
}

function resetfieldclasses(me){
	for ( var i=0;i<me.elements.length;i++ )
	{
		if(me.elements[i].name != ''){
			if( me.elements[i].type=='text' )
			{
			me.elements[i].style.border='1px solid #ccc';
			}
		}		
	}
}

function redalert(me){
	me.style.border='1px solid red';
	me.focus();
}


function rendermail(user, domain, classname){
  var1=user;
  var2=domain;
  var3=var1+'@'+var2;
  emailE=(var3);
  document.write ('<a class="'+ classname +'" href="mailto:' + emailE + '">' + emailE + '<\/a>');
}

function StartClientMail(user, domain){
  var1=user;
  var2=domain;
  var3=var1+'@'+var2;
  emailE=(var3);
  document.location.href='mailto:' + emailE;
}

function onEnter( evt, frm ) {
	var keyCode = null;

	if( evt.which ) {
		keyCode = evt.which;
	} else if( evt.keyCode ) {
		keyCode = evt.keyCode;
	}
	if( 13 == keyCode ) {
		frm.btnEnter.click();
		return false;
	}
	return true;
}

function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}

function emailCheck (emailStr) {

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD.  1 means check it, 0 means don't. */

var checkTLD=1;

/* The following is the 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)$/;

/* 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];

// 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) {
//alert("Ths username contains invalid characters.");
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
//alert("Ths domain name contains invalid characters.");
return false;
   }
}

// 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.  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) {
//alert("The domain name does not seem to be valid.");
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) {
//alert("The address must end in a well-known domain or two letter " + "country.");
return false;
}

// Make sure there's a host name preceding the domain.

if (len<2) {
//alert("This address is missing a hostname!");
return false;
}

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

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}