$('username').onkeyup = check_username;
function check_username() {
	var params = 'user='+$F('username');
	
	var checkusername = new Ajax.Request(
		'/scripts/ajax.register.checkusername.php',
		{
			parameters:params,
			onSuccess:function(r) {
				$('errormsg_username').innerHTML = '';
				updateSubmit();
			},
			onFailure:function(r) {
				$('errormsg_username').innerHTML = r.responseText;
				updateSubmit();
			}
		} );
}

$('email').onkeyup = check_email;
function check_email() {
	var params = 'mail='+$F('email');
	
	var checkemail = new Ajax.Request(
		'/scripts/ajax.register.checkemail.php',
		{
			parameters:params,
			onComplete:function(r) {
				$('errormsg_email').innerHTML = r.responseText;
				updateSubmit();
			}
		} );
}

$('password').onkeyup = check_password;
function check_password() {
	var params = 'ajax=1&pass='+$F('password');
	
	var checkpwguidelines = new Ajax.Request(
		'/scripts/ajax.register.checkpwguidelines.php',
		{
			parameters:params,
			onSuccess:function(r) {
				$('errormsg_password').innerHTML = '';
				check_passwordrepeat();
				updateSubmit();
			},
			onFailure:function(r) {
				var msg = r.responseXML.getElementsByTagName("msg")[0].childNodes[0].nodeValue;
				$('errormsg_password').innerHTML = msg;
				updateSubmit();
			}
		} );
}

$('passwordagain').onkeyup = check_passwordrepeat;
function check_passwordrepeat() {
	if( $F('password')==$F('passwordagain') ) {
		$('errormsg_passwordagain').innerHTML= '';
	} else {
		$('errormsg_passwordagain').innerHTML= 'passwords do not match';
	}
	updateSubmit();
}

function updateSubmit() {
	var allok = ( $('errormsg_username').innerHTML.length==0 &&
				  $('errormsg_email').innerHTML.length==0 &&
				  $('errormsg_password').innerHTML.length==0 &&
				  $('errormsg_passwordagain').innerHTML.length==0 &&
				  $('terms').checked );
	
	//$('button_register').disabled = !allok;
}


$('terms').onchange = updateSubmit;


// onStart
check_username();
check_email();
check_password();