function Get_Cookie(name, ifnull) {

    var start = document.cookie.indexOf(name + "=");
    var len = start + name.length + 1;

    if ((!start) && (name != document.cookie.substring(0,name.length))) return ifnull;
    if (start == -1) return ifnull;

    var end = document.cookie.indexOf(";",len);

    if (end == -1) end = document.cookie.length;
	var value = unescape(document.cookie.substring(len,end));
  	return (value == null ? ifnull : value);
}

function Set_Cookie(name, value, expires, path, domain, secure) {

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

	document.cookie = NewCookie;
}

function Delete_Cookie(name, path, domain) {

    if (Get_Cookie(name))
		document.cookie = name + "=" +
        ( (path) ? ";path=" + path : ";path=/") +
        ( (domain) ? ";domain=" + domain : "") +
        ";expires=Thu, 01-Jan-70 00:00:01 GMT";
}