I'm using a PHP framework Codeigniter that uses segment based urls like `http://www.mydomain.com/age/11/name/john/color/red` instead of the usual querystrings lijke `http://www.mydomain.com/index.php?age=11&name=john&color=red`.

**How do I grab the value of the `age` key from the url using Javascript/jQuery?** 

After grabbing the value `11` I will pass it into a jQuery object when an event is fired.

```
$( "#searchdistance_slider" ).slider({
        range: "min",
        value: 5,
        min: 0.5,
        max: 10,
        slide: function( event, ui ) {
            $( "#search_distance" ).val(ui.value + " miles");
            window.location.replace("http://www.domain.com/" + age); 
            /* passing the value of age into URL to redirect to */
        }
    });

```

**UPDATE**

* The key/value pairs **can change position**, and the number of key/value pairs in the URL are not fixed
* I need to grab the value **within Javascript** because the user uses a slider to change a particular value, say the `age`, and the new value `20` from the slider will be use to redirect the user to `http://www.mydomain.com/age/20/name/john/color/red`