Problem:
You need to grab some information from the querystring of a URL using only javascript.
Solution:
Use some code I found!
I found this code:
/* Client-side access to querystring name=value pairs Version 1.2.3 22 Jun 2005 Adam Vandenberg */ function Querystring(qs) { // optionally pass a querystring to parse this.params = new Object() this.get=Querystring_get if (qs == null) qs=location.search.substring(1,location.search.length) if (qs.length == 0) return // Turn <plus> back to <space> // 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 value; var pair = args[i].split('=') var name = unescape(pair[0]) if (pair.length == 2) value = unescape(pair[1]) else value = name this.params[name] = value } } function Querystring_get(key, default_) { // This silly looking line changes UNDEFINED to NULL if (default_ == null) default_ = null; var value=this.params[key] if (value==null) value=default_; return value }
So throw that in your page, and then call that sucker like this:
// Parse the current page's querystring var qs = new Querystring()
And then just go right on ahead and populate some variables with some query string variables:
var v1 = qs2.get("name1") var v3 = qs2.get("name3", "default value")
And use that information for whatever you needed it for in the first place. Is nice?