Querystring = function() {
    var querystring=location.search.substring(1,location.search.length);
    var args = querystring.split('&');

    for (var i=0;i<args.length;i++) {
        var pair = args[i].split('=');
		
        temp = unescape(pair[0]).split('+');
        name = temp.join(' ');

        temp = unescape(pair[1]).split('+');
        value = temp.join(' ');
		
        this[name] = value;
    }
    this.get = Querystring_get;
};
Querystring_get = function(strKey,strDefault) {
    var value = this[strKey];
    if (value == null) {
        value = strDefault;
    }
    return value;
};