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


function GetCookie (name) {
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  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 null;
}


function DeleteCookie (name,path,domain) {
  if (GetCookie(name)) {
	document.cookie = name + "=null" +
	  ((path) ? "; path=" + path : "") +
	  ((domain) ? "; domain=" + domain : "") +
	  "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}