// // ClearCookie - Removes a cookie by setting an expiration date // three days in the past // function ClearCookie(name) { var ThreeDays = 3 * 24 * 60 * 60 * 1000; var expDate = new Date(); expDate.setTime(expDate.getTime() - ThreeDays); document.cookie = name + "=NA; expires=" + expDate.toGMTString(); }