function removeError() {
	if ($('username').value != '') {
		$('userContainer').className = '';
		
		if ($('errText')) {
			$('errText').destroy();
		}
	}
	if ($('password').value != '') {
		$('passContainer').className = '';
	}
}

function checkAllFields() {
	
	alert(checkFields('username'));
	
	if (checkFields('username')) {
		if (checkFields('password')) {
			if (checkFields('email')) {
				return true;
			}
		}
	}
	return false;
}

function checkFields(field) {
	
	if ($(field).value == '') {
		$(field+'Container').className = 'error';
		$(field+'Check').style.display = 'none';
		return false;
	}
	
		var req = new Request({
			method: 'post',  
			url: '/ajax/register.php',
			update: field+'ErrText',
			data: { 
				'field' : field,
				'value' : $(field).value
			},  
			onComplete: function(response) {
				
				if (response == 1) {
					$(field+'Container').className = 'ok';
					$(field+'ErrText').set('html', '');
					$(field+'Check').style.display = 'block';
					return true;
				}
				else {
					$(field+'Container').className = 'error';
					$(field+'ErrText').set('html', response);
					$(field+'Check').style.display = 'none';
					return false;
				}
				
			}
		 }).send();
	
}