Parses a URL and returns a JS obj of key->value pairs with the URL params

parseUrl.js

var parseUrl = function(url){
  var q = {}
  ,   r = new RegExp("([^?=&]+)(=([^&]*))?", "g");
  url.replace(r,function($0, $1, $2, $3){ q[$1] = $3; });
  return q;
}

/**
 * var example = parseUrl('http://google.com?foo=bar&hello=world');
 *
 * > example.foo 
 * "bar"
 * > example['hello']
 * "world"
 */