function setCookie (name, value, expires, path, domain, secure)
{
                document.cookie = name + '=' + escape(value) +
                ((expires) ? '; expires=' + expires : '') +
                ((path) ? '; path=' + path : '') +
                ((domain) ? '; domain=' + domain : '') +
                ((secure) ? '; secure' : '');
}

function getCookie(name)
{
                var cookie = ' ' + document.cookie;
                var search = ' ' + name + '=';
                var setStr = null;
                var offset = 0;
                var end = 0;
                if (cookie.length > 0)
                {
                               offset = cookie.indexOf(search);
                               if (offset != -1)
                               {
                                               offset += search.length;
                                               end = cookie.indexOf(';', offset);
                                               if (end == -1)
                                               {
                                                               end = cookie.length;
                                               }
                                               setStr = unescape(cookie.substring(offset, end));
                               }
                }
                return(setStr);
}
function deleteCookie (name, path, domain) {
    if (getCookie(name)) {
        document.cookie = name + "=" +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") + "; expires=Thu, 01-Jan-99 00:00:01 GMT"
    }
}