//SET A NEW COOKIE
//Arguments:
//  name: cookie name (string)
//  value: cookie value (unencoded string)
//  expiry: expiry date (date)
//  path: document path (string)
//  domain: document domain (string)
//  secure: secure required? (boolean)

function setCookie(name,value,expiry,path,domain,secure) {

   var nameString = name + "=" + value;
   var expiryString = (expiry == null) ? "" : "; expires=" + expiry.toGMTString();
   var pathString = (path == null) ? "" : "; path=" + path;
   var domainString = (path == null) ? "" : "; domain=" + domain;
   var secureString = (secure) ? "; secure" : "";

   document.cookie = nameString + expiryString + pathString + domainString + secureString;

}

//GET A NEW COOKIE
//Arguments:
//  name: cookie name (string)

function getCookie(name) {
   var cookieFound = false;
   var start = 0;
   var end = 0;
   var cookieString = document.cookie;

   var i = 0;

   //LOOK FOR name IN cookieString
   while (i <= cookieString.length) {
      start = i;
      end = start + name.length;
      if (cookieString.substring(start,end) == name) {
         cookieFound = true;
         break;
      }
      i++;
   }

   //CHECK IF NAME WAS FOUND
   if (cookieFound) {
      start = end + 1;
      end = cookieString.indexOf(";",start);
      if (end < start)
         end = cookieString.length;
      return unescape(cookieString.substring(start,end));
   }

   //NAME WAS NOT FOUND
   return "";

}

//DELETE A COOKIE
//Arguments:
//  name: cookie name (string);

function deleteCookie(name) {

   var expires = new Date();
   expires.setTime (expires.getTime() - 1);

   setCookie(name,"Delete Cookie",expires,null,null,false);

}