/***************************************************************
*  Copyright notice
*
*  (c) 2008 Loredana Zeca <typo3dev@ameos.com>
*  All rights reserved
*
*  This script is part of the TYPO3 project. The TYPO3 project is
*  free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  The GNU General Public License can be found at
*  http://www.gnu.org/copyleft/gpl.html.
*
*  This script is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
* 
*  This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function deleteCookie(pid) {
	var sCookieName = 'pbsurvey[' + pid + '][rid]';
	var sCookieValue = readCookie(sCookieName);
	document.cookie = sCookieName + '=' + sCookieValue + ';expires=Thu, 01-Jan-1970 00:00:01 GMT;';
}