Het is de volgende code:
[code]
<html>
<head>
<title>test</title>
<style>
<!--
body{
color:#000000;
font-family:Arial, Helvetica, sans-serif;
font-size:12px;
font-style:normal;
}
table{
color:#000000;
font-family:Arial, Helvetica, sans-serif;
font-size:12px;
font-style:normal;
}
.noborder{
border:none;
color:#000000;
font-family:Arial, Helvetica, sans-serif;
font-size:12px;
font-style:normal;
}
select{
font-family:sans-serif, Helvetica;
}
.smalltxt{
border:none;
color:#000000;
font-family:Arial, Helvetica, sans-serif;
font-size:10px;
font-style:normal;
}
-->
</style>
<script language="JavaScript" type="text/javascript">
//////////////////////////////////////////////////////////////////
/*	This code is created by: Koen Scheres, aKa BlackLightning	*/
/*					DO NOT REMOVE THIS TAG!						*/
//////////////////////////////////////////////////////////////////

function leeg(){
  document.myForm.mail1.value='';
  document.myForm.mail2.value='';
  document.myForm.gebruiker1.value='';
  document.myForm.gebruiker2.value='';
  document.myForm.pass1.value='';
  document.myForm.pass2.value='';
  document.myForm.correct.value='';
  document.myForm.correct2.value='';
  document.myForm.correct3.value='';
  document.myForm.correct4.value='';
}

//----------Check if password entrys are the same----------//
function controleerpw(){ // Start the function
  var pass1=document.myForm.pass1.value; // Get the values from the form
  var pass2=document.myForm.pass2.value; // Get the values from the form
	if(pass1==''){ // See if they are set
	  document.plaatje.src=('none.png'); // No, so show an empty picture
	  document.myForm.correct.value=(''); // And make 'control-text' empty
	}
	else if(pass2==''){ // See if they are set
	  document.plaatje.src=('none.png'); // No, so show an empty picture
	  document.myForm.correct.value=(''); // And make 'control-text' empty
	}
	else{ // If they're both filled in:
	  if(pass1==pass2){ // See if they are the same, if they're both set
		document.plaatje.src=('right.png'); // Yes, so show the 'correct' picture
		document.myForm.correct.value=('De passwords zijn hetzelfde!'); // Print a certain line in the 'control-text' area
		pass1=''; // This is for securety reasons, only during the controleerpw() function these variables have values. With a certain code you can get these values on your screen, this is why it's like this.
		pass2=''; // Same as above
	  }
	  else{ // They are both filed in, but they're not the same
	  document.plaatje.src=('wrong.png'); // No, so show the 'wrong' picture
	  document.myForm.correct.value=('De passwords zijn verschillend :( !'); // Print a certain line in the 'control-text' area
	  pass1=''; // This is for securety reasons, only during the controleerpw() function these variables have values. With a certain code you can get these values on your screen, this is why it's like this.
	  pass2=''; // Same as above
	  }
	}
}

//----------Check if the e-mail entrys are the same----------//
function controleeremail(){ // Start the function
	var mail1=document.myForm.mail1.value; // Get the values from the form
	var mail2=document.myForm.mail2.value; // Get the values from the form
	if(mail1==''){ // See if they are set
		document.plaatje2.src=('none.png'); // No, so show an empty picture
		document.myForm.correct2.value=(''); // And make 'control-text' empty
	}
	else if(mail2==''){ // See if they are set
		document.plaatje2.src=('none.png'); // No, so show an empty picture
		document.myForm.correct2.value=(''); // And make 'control-text' empty
	}
	else{ // If they're both filled in:
		if(mail1==mail2){ // See if they are the same, if they're both set
			document.plaatje2.src=('right.png'); // Yes, so show the 'correct' picture
			document.myForm.correct2.value=('De e-mails zijn hetzelfde!'); // Print a certain line in the 'control-text' area
		}
		else{ // They are both filed in, but they're not the same
			document.plaatje2.src=('wrong.png'); // No, so show the 'wrong' picture
			document.myForm.correct2.value=('De e-mails zijn verschillend :( !'); // Print a certain line in the 'control-text' area
		}
	}
}

function validatemail(){
	var y=document.myForm.mail1.value
	var x=y.split('@');
	var z=x[1]
	if(z.length>3){
		var zx=z.split('.');
	var zy=zx[1];
	var zz=zx[2];
	if(zx[0]<1){
		document.plaatje4.src=('wrong.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is niet geldig :( !');
	}
	else{
	switch(zy){
	  case 'ac':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'as':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ad':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ag':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'am':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ar':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'au':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'bb':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'be':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'bi':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'bm':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'br':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'bz':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'io':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ca':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'cc':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'cd':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'cg':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'cl':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'cn':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'cu':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'cx':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'hr':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'dk':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'do':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ec':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'fr':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'de':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ge':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'gi':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'gr':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'hk':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'hu':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'id':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'in':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'is':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ie':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'im':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'it':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'jo':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'jp':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'kr':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'li':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'lt':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'lu':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'lv':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'mt':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'mx':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'fm':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'nl':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'nu':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'pk':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'pa':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ru':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');	  
	  break;
	  case 'sg':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'sk':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'es':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'sh':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'se':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'ch':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'com':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'net':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'org':
		document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is geldig!');
	  break;
	  case 'co':
	    switch(zx[2]){
		case 'uk':
		  document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		  document.myForm.correct4.value=('De e-mail is geldig!');
		break;
		case 'cr':
		  document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		  document.myForm.correct4.value=('De e-mail is geldig!');
		break;
		case 'nz':
		  document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		  document.myForm.correct4.value=('De e-mail is geldig!');
		break;
		case 'th':
		  document.plaatje4.src=('right.png'); // No, so show the 'wrong' picture
		  document.myForm.correct4.value=('De e-mail is geldig!');
		break;
		default:
		document.plaatje4.src=('wrong.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is niet geldig :( !');
		break;
		}
	  break;
	  default:
		document.plaatje4.src=('wrong.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is niet geldig :( !');
	  break;
	  }
	}
	}
	else{
		document.plaatje4.src=('wrong.png'); // No, so show the 'wrong' picture
		document.myForm.correct4.value=('De e-mail is niet geldig :( !');
	}
}

//----------Check if the user entrys are the same----------//
function controleergebruiker(){ // Start the function
  var gebr1=document.myForm.gebruiker1.value; // Get the values from the form
  var gebr2=document.myForm.gebruiker2.value; // Get the values from the form
	if(gebr1==''){ // See if they are set
	  document.plaatje3.src=('none.png'); // No, so show an empty picture
	  document.myForm.correct3.value=(''); // And make 'control-text' empty
	}
	else if(gebr2==''){ // See if they are set
	  document.plaatje3.src=('none.png'); // No, so show an empty picture
	  document.myForm.correct3.value=(''); // And make 'control-text' empty
	}
	else{ // If they're both filled in:
	  if(gebr1==gebr2){ // See if they are the same, if they're both set
		document.plaatje3.src=('right.png'); // Yes, so show the 'correct' picture
		document.myForm.correct3.value=('De gebruikersnamen zijn hetzelfde!'); // Print a certain line in the 'control-text' area
	  }
	  else{ // They are both filed in, but they're not the same
	  document.plaatje3.src=('wrong.png'); // No, so show the 'wrong' picture
	  document.myForm.correct3.value=('De gebruikersnamen zijn verschillend :( !'); // Print a certain line in the 'control-text' area
	  }
	}
}
function controleer_bovenstaande_waarde(){
  if(document.myForm.correct4.value==''){
  document.myForm.correct4.value=('Geen valide e-mail! typ aub de goede in!');
  document.plaatje4.src=('wrong.png');
  }
}
</script>
</head>
<body onLoad="leeg()">
<form name="myForm">
<table width="90%" align="left">
  <tr>
	<td width="10%">Gebruikersnaam:</td>
	<td width="10%"><input type="text" name="gebruiker1" onBlur="controleergebruiker()"></td>
	<td width="80%">&nbsp;</td>
  </tr>
  <tr>
	<td width="10%">Herhaal Gebruikersnaam:</td>
	<td width="10%"><input type="text" name="gebruiker2" onBlur="controleergebruiker()"></td>
	<td align="left" width="80%"><img src="none.png" name="plaatje3"><input type="text" class="noborder" size="50" name="correct3" onFocus="document.myForm.mail1.focus()">
    </td>
  </tr>
  <tr>
	<td width="10%">E-mail:</td>
	<td width="10%"><input type="text" name="mail1" onBlur="validatemail()"><input type="hidden" name="emailcheck"></td>
	<td align="left" width="80%"><img src="none.png" name="plaatje4"><input type="text" class="noborder" size="50" name="correct4" onFocus="document.myForm.mail2.focus()">
    </td>
  </tr>
  <tr>
	<td width="10%">Herhaal e-mail:</td>
	<td width="10%"><input type="text" name="mail2" onBlur="controleeremail()" onFocus="controleer_bovenstaande_waarde()"></td>
	<td align="left" width="80%"><img src="none.png" name="plaatje2"><input type="text" class="noborder" size="50" name="correct2" onFocus="document.myForm.pass1.focus()"></td>
  </tr>
	<td width="10%">Wachtwoord:</td>
	<td width="10%"><input type="password" name="pass1" onBlur="controleerpw()" onFocus="controleer_bovenstaande_waarde()"></td>
	<td width="80%">&nbsp;</td>
  </tr>
  <tr>
	<td width="10%">Herhaal wachtwoord:</td>
	<td width="10%"><input type="password" name="pass2" onBlur="controleerpw()"></td>
	<td align="left" width="80%"><img src="none.png" name="plaatje"><input type="text" class="noborder" size="50" name="correct" onFocus="document.myForm.gebruiker1.focus()"></td>
  </tr>
</table>
</form>
</body>
</html>
[/code]

Ik ben nog bezig aan een anti-spam functie (in php),

Koen