function Querystring()
{
// get the query string, ignore the ? at the front.
    var querystring=location.search.substring(1,location.search.length);

// parse out name/value pairs separated via &
    var args = querystring.split('&');

// split out each name = value pair
    for (var i=0;i<args.length;i++)
    {
        var pair = args[i].split('=');

        // Fix broken unescaping
        temp = unescape(pair[0]).split('+');
        name = temp.join(' ');

        temp = unescape(pair[1]).split('+');
        value = temp.join(' ');

        this[name]=value;
    }

    this.get=Querystring_get;
}


function Querystring_get(strKey,strDefault)
{
    var value=this[strKey];
    if (value==null)
    {
        value=strDefault;
    }

    return value;
}