/* Client-side access to querystring name=value pairs Version 1.3 28 May 2008 License (Simplified BSD): http://adamv.com/dev/javascript/qslicense.txt */ function Querystring(qs) { // optionally pass a querystring to parse this.params = {}; var query_string = window.location.search; if (qs == null) qs = query_string.substring(1, query_string.length); if (qs.length == 0) return; // Turn back to // See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1 qs = qs.replace(/\+/g, ' '); var args = qs.split('&'); // parse out name/value pairs separated via & // split out each name=value pair for (var i = 0; i < args.length; i++) { var pair = args[i].split('='); var name = decodeURIComponent(pair[0]); var value = (pair.length==2) ? decodeURIComponent(pair[1]) : name; this.params[name] = value; } } Querystring.prototype.get = function(key, default_) { var value = this.params[key]; return (value != null) ? value : default_; } Querystring.prototype.contains = function(key) { var value = this.params[key]; return (value != null); }