diff --git a/light9/web/lib/QueryString.js b/light9/web/lib/QueryString.js
deleted file mode 100644
--- a/light9/web/lib/QueryString.js
+++ /dev/null
@@ -1,116 +0,0 @@
-// This is public domain code written in 2011 by Jan Wolter and distributed
-// for free at http://unixpapa.com/js/querystring.html
-//
-// Query String Parser
-//
-//    qs= new QueryString()
-//    qs= new QueryString(string)
-//
-//        Create a query string object based on the given query string. If
-//        no string is given, we use the one from the current page by default.
-//
-//    qs.value(key)
-//
-//        Return a value for the named key.  If the key was not defined,
-//        it will return undefined. If the key was multiply defined it will
-//        return the last value set. If it was defined without a value, it
-//        will return an empty string.
-//
-//   qs.values(key)
-//
-//        Return an array of values for the named key. If the key was not
-//        defined, an empty array will be returned. If the key was multiply
-//        defined, the values will be given in the order they appeared on
-//        in the query string.
-//
-//   qs.keys()
-//
-//        Return an array of unique keys in the query string.  The order will
-//        not necessarily be the same as in the original query, and repeated
-//        keys will only be listed once.
-//
-//    QueryString.decode(string)
-//
-//        This static method is an error tolerant version of the builtin
-//        function decodeURIComponent(), modified to also change pluses into
-//        spaces, so that it is suitable for query string decoding. You
-//        shouldn't usually need to call this yourself as the value(),
-//        values(), and keys() methods already decode everything they return.
-//
-// Note: W3C recommends that ; be accepted as an alternative to & for
-// separating query string fields. To support that, simply insert a semicolon
-// immediately after each ampersand in the regular expression in the first
-// function below.
-
-function QueryString(qs)
-{
-    this.dict= {};
-
-    // If no query string  was passed in use the one from the current page
-    if (!qs) qs= location.search;
-
-    // Delete leading question mark, if there is one
-    if (qs.charAt(0) == '?') qs= qs.substring(1);
-
-    // Parse it
-    var re= /([^=&]+)(=([^&]*))?/g;
-    while (match= re.exec(qs))
-    {
-	var key= decodeURIComponent(match[1].replace(/\+/g,' '));
-	var value= match[3] ? QueryString.decode(match[3]) : '';
-	if (this.dict[key])
-	    this.dict[key].push(value);
-	else
-	    this.dict[key]= [value];
-    }
-}
-
-QueryString.decode= function(s)
-{
-    s= s.replace(/\+/g,' ');
-    s= s.replace(/%([EF][0-9A-F])%([89AB][0-9A-F])%([89AB][0-9A-F])/gi,
-	function(code,hex1,hex2,hex3)
-	{
-	    var n1= parseInt(hex1,16)-0xE0;
-	    var n2= parseInt(hex2,16)-0x80;
-	    if (n1 == 0 && n2 < 32) return code;
-	    var n3= parseInt(hex3,16)-0x80;
-	    var n= (n1<<12) + (n2<<6) + n3;
-	    if (n > 0xFFFF) return code;
-	    return String.fromCharCode(n);
-	});
-    s= s.replace(/%([CD][0-9A-F])%([89AB][0-9A-F])/gi,
-	function(code,hex1,hex2)
-	{
-	    var n1= parseInt(hex1,16)-0xC0;
-	    if (n1 < 2) return code;
-	    var n2= parseInt(hex2,16)-0x80;
-	    return String.fromCharCode((n1<<6)+n2);
-	});
-    s= s.replace(/%([0-7][0-9A-F])/gi,
-	function(code,hex)
-	{
-	    return String.fromCharCode(parseInt(hex,16));
-	});
-    return s;
-};
-
-QueryString.prototype.value= function (key)
-{
-    var a= this.dict[key];
-    return a ? a[a.length-1] : undefined;
-};
-
-QueryString.prototype.values= function (key)
-{
-    var a= this.dict[key];
-    return a ? a : [];
-};
-
-QueryString.prototype.keys= function ()
-{
-    var a= [];
-    for (var key in this.dict)
-	a.push(key);
-    return a;
-};