Javascript Registration Page - Check if user EXIST in DB

[Pablo]

I am making a registration page using js but having some difficulties checking if user exist in the database plz help me out with this

<script type="text/javascript">
     $(document).ready(function(){
		$("#regform").validate({
			debug: false,
			rules: {
				username: "required",
                                remote: {
                                url: "check_user.php",
                                type: "post",
                                 },
                                 
                                password: "required",
				email: {
					required: true,
					email: true
				}
			},
		
                           messages: {
                                username: {
                                  
				required: "Please create a desired username!",
                                remote: "u already exist",
                                },
                   	        email: "Enter a valid email address!<br/>",
                                password: "Please create a personal password!",
                                
			  },
			
submitHandler: function(form) {
				
// do other stuff for a valid form

$.post('reg_submit.php', $("#regform").serialize(), function(data) {
$('#insert').html(data);
});

}
});
});
</script>

[something else]

the above is jquery but its similar to javascript...

in javascript it is done like this:

        var xmlhttp = new XMLHttpRequest();
        xmlhttp.open("POST", 'check_user.php', false);
        xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
        xmlhttp.send(params);
        var response = xmlhttp.responseText;

then response will be the variable that tells you if name is used or not.

However i should imagine there is a much shorter way with jquery

[Anthony]

check my posting here http://coding-talk.com/f16/using-jqu...atabase-23201/