function ValidateForm (frm, fields)	{
	var vf = Validate(fields);
	//var cf = CheckForm(frm);

	if (vf) { return true; }
	else { return false; }
}


missings = new Array();
missings['geen_emailadres'] = 'Je hebt je emailadres niet ingevuld.';
missings['geen_geldig_emailadres'] = 'Het ingevulde email adres is geen geldig email adres.';
missings['ongeldige_tekens_voor'] = 'Het emailadres bevat ongeldige tekens voor de @.';
missings['ongeldige_tekens_na'] = 'Het emailadres bevat ongeldige tekens na de @.';

<!--//--><![CDATA[//><!--
  function trim(str)
  {
    s = str.replace(/^(\s)*/, '');
    s = s.replace(/(\s)*$/, '');
    return s;
  }

function Validate(check)
{
	var pass = true;
	var fields = new Array();
	var i = 0;
	var f = '';

	fields = check.split(',');
	missing_fields = new Array();
	
	for (i=0;i<fields.length;i++) {
		f = trim(fields[i]);
		/*
		This sets the "missing" class to the field instead of the parent (P element)
		document.getElementById(fields[i]).className = document.getElementById(fields[i]).className.replace('missing', '');
		*/
		document.getElementById(fields[i]).parentNode.className = document.getElementById(fields[i]).parentNode.className.replace('missing', '');

		/* Remove the added textual indication of an error */
		var els = document.getElementById(fields[i]).parentNode.getElementsByTagName('strong');
		for (j=0; j<els.length; j++)
		{
			document.getElementById(fields[i]).parentNode.removeChild(els[j]);
		}

		var errTag = document.createElement('strong');
		var errTxt = document.createTextNode('');
		/* End: Remove the added... */
		obj = document.getElementById(fields[i]);
		if (obj) {
			if (obj.type == 'checkbox') {
				if (obj.checked) {
					value = obj.value;
				} else {
					value = '';
				}
			} else {
				value = obj.value;
			}
		}
		if (value == '') {
			/*
			This sets the "missing" class to the field instead of the parent (P element)
			document.getElementById(fields[i]).className = document.getElementById(fields[i]).className + ' missing';
			*/
			document.getElementById(fields[i]).parentNode.className = document.getElementById(fields[i]).parentNode.className + ' missing';

			/* Add a textual indication of an error */
			document.getElementById(fields[i]).parentNode.appendChild(errTag);
			errTag.appendChild(errTxt);
			pass = false;
			missing_fields[missing_fields.length] = fields[i];
		} else {
			idx = fields[i].indexOf("E_");
			if (idx == 0) {
				missing_fields[missing_fields.length] = fields[i];
			}
		}
		// Safety
		if (i>50) { break; }
	}
	for(i=0;i<missing_fields.length;i++) {
		field = missing_fields[i];
		idx = field.indexOf("E_");
		if (idx >= 0 && idx < 2) {
			//het veld is een email veld	
			objemail = document.getElementById(field);
			if (!emailCheck(objemail)){
				objemail.focus();
				return (false);
			}
		} else {
			//het veld is normaal tekst veld
			objfield = document.getElementById(field);
			if (objfield.type == 'checkbox') {
				if (objfield.checked) {
					value = objfield.value;
				} else {
					value = '';
				}
			} else {
				value = objfield.value.trim();
			}
			if (value == '') {
				alert(missings[field]);
				objfield.focus();
				return false;
			}
		}
	}
	return pass;
}
//--><!]]>


function emailCheck (obj) {
emailObj=obj;
emailStr = emailObj.value;
if(emailStr == "")
{
    alert ( missings['geen_emailadres'] );
    return false;
}
var checkTLD=0;
var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
var emailPat=/^(.+)@(.+)$/;
var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
var validChars="\[^\\s" + specialChars + "\]";
var quotedUser="(\"[^\"]*\")";
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
var atom=validChars + '+';
var word="(" + atom + "|" + quotedUser + ")";
var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
var matchArray=emailStr.match(emailPat);
if (matchArray==null) {
alert(missings['geen_geldig_emailadres']);
return false;
}
var user=matchArray[1];
var domain=matchArray[2];
for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
alert(missings['ongeldige_tekens_voor']);
return false;
}
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert(missings['ongeldige_tekens_na']);
return false;
}
}
if (user.match(userPat)==null) {
alert(missings['geen_geldig_emailadres']);
return false;
}
/*
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
alert("Het IP adres klopt niet.");
return false;
}
}
return true;
}
*/
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
alert(missings['geen_geldig_emailadres']);
return false;
}
}
if (checkTLD && domArr[domArr.length-1].length!=2 &&
domArr[domArr.length-1].search(knownDomsPat)==-1) {
alert(missings['geen_geldig_emailadres']);
return false;
}
if (len<2) {
alert(missings['geen_geldig_emailadres']);
return false;
}
return true
}