//  Cookie Functions
//

function getCookieVal (offset) {
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
    endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var chaineVide="";
  var i = 0;
  while (i < clen) {
     var j = i + alen;
     if (document.cookie.substring(i, j) == arg)
       return getCookieVal (j);
     i = document.cookie.indexOf(" ", i) + 1;
     if (i == 0) break;
   }
   return chaineVide="";
 }

//  Function to create or update a cookie.
//    name - String object object containing the cookie name.
//    value - String object containing the cookie value.  May contain
//      any valid string characters.
//    [expires] - Date object containing the expiration data of the cookie.  If
//      omitted or null, expires the cookie at the end of the current session.
//    [path] - String object indicating the path for which the cookie is valid.
//      If omitted or null, uses the path of the calling document.
//    [domain] - String object indicating the domain for which the cookie is
//      valid.  If omitted or null, uses the domain of the calling document.
//    [secure] - Boolean (true/false) value indicating whether cookie transmission
//      requires a secure channel (HTTPS).
//

 function SetCookie (name, value) {
     //   alert("setcookie = " + name + "-"+ value);
   var argv = SetCookie.arguments;
   var argc = SetCookie.arguments.length;
   //     alert("argc = " + argc);
   var expires = (argc > 2) ? argv[2] : null;
	//  var path =(argc > 3) ? argv[3] : null;
	var path="/";
  var domain = (argc > 4) ? argv[4] : null;
  var secure = (argc > 5) ? argv[5] : false;
  document.cookie = name + "=" + escape (value) +
    ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
    ((path == null) ? "" : ("; path=" + path)) +
    ((domain == null) ? "" : ("; domain=" + domain)) +
    ((secure == true) ? "; secure" : "");
//alert(document.cookie);
}

function DeleteCookie (name) {
   //    alert("deletecookie = " + name);
  var exp = new Date();
  exp.setTime (exp.getTime() - 1);  // This cookie is history
  var cval = GetCookie (name);
  document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}