<!-- Begin
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|eu|co.uk|tk|fr|es|it|cn|nl|de|be|info|biz)$/;

/*	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("Het emailadres is ongeldig (let op @ en .) "+emailStr);
		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("Ongeldige karakters in het emailadres.");
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
//			alert("Ongeldige karakters in het emailadres.");
			return false;
		}
	}

//	See if "user" is valid 

	if (user.match(userPat)==null) {
	// user is not valid
//		alert("Ongeldige karakters in het emailadres.");
		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("Het IP adres is ongeldig!");
				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("De domeinnaam is ongeldig.");
			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("Het adres moet eindigen in een domeinnaam of een 2 letterland.");
		return false;
	}

//	Make sure there's a host name preceding the domain.
	if (len<2) {
		alert("Het emailadres mist een hostname.");
		return false;
	}

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

//Standaard browser detect
function checkBrowser(){
	this.ver=navigator.appVersion
	this.dom=document.getElementById?1:0
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
	this.ie4=(document.all && !this.dom)?1:0;
	this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
	return this
}
var bw = new checkBrowser();

function getCookie(name){
   var cname = name + "=";               
   var dc = document.cookie;             
   if (dc.length > 0) {              
      begin = dc.indexOf(cname);       
      if (begin != -1) {           
         begin += cname.length;       
         end = dc.indexOf(";", begin);
         if (end == -1) end = dc.length;
         return unescape(dc.substring(begin, end));
      } 
   }
   return null;
}
function setCookie(name, value, expires) {
	document.cookie = name + "=" + escape(value) + 
	((expires != null) ? "; expires=" + expires.toGMTString() : "")
	+ "; path=/";
}
function setName() {
	var expdate = new Date ();
	expdate.setTime (expdate.getTime() + (24 * 60 * 60));
	var prompt=i = document.emailform.name.value;
	setCookie("name", i, expdate);
}
function getName() {
	if(getCookie("achternaam") != null) {
		document.emailform.Name.value = getCookie("emailname");
	}
}
function getInfo() {
	var now= new Date();
	document.emailform.Info.value = "Browser: " + navigator.userAgent;
	document.emailform.Info.value += "Date:" + now;
}
function checkMultiple(f) {
	if (getCookie("emailsent"+f) == 'true') return true;
	else return false;
}
function process(f) {
	setCookie("emailsent"+f, "true");
}

function IsNumeric(sText)
{
   var ValidChars = "0123456789.-/";
   var IsNumber=true;
   var Char;

   if(sText == '')
   {
	 IsNumber = false;  
   }
 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
}


// End -->