function setCookie(name, value, expires, path, domain, secure) {
//  domain='elearning';
  path="/";

  var curCookie = name + "=" + escape(value) +
  ((expires) ? "; expires=" + expires.toGMTString() : "") +
  ((path) ? "; path=" + path : "") +
  ((domain) ? "; domain=" + domain : "") +
  ((secure) ? "; secure" : "");

  document.cookie = curCookie;


}

function getCookie(name)
{
cookie_name = name + "=";

cookie_length = document.cookie.length;
cookie_begin = 0;
while (cookie_begin < cookie_length)
{
value_begin = cookie_begin + cookie_name.length;
if (document.cookie.substring(cookie_begin, value_begin) == cookie_name)
{
var value_end = document.cookie.indexOf (";", value_begin);
if (value_end == -1)
{
value_end = cookie_length;
}
return unescape(document.cookie.substring(value_begin, value_end));
}
cookie_begin = document.cookie.indexOf(" ", cookie_begin) + 1;
if (cookie_begin == 0)
{
break;
}
}
return null;
}
function strpos (haystack, needle, offset) {
 var i = (haystack + '').indexOf(needle, (offset || 0));
    return i === -1 ? false : i;
}
function deleteCookie(name, path, domain) {
    path="/";
    document.cookie = name + "=" +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";

}