var qs = location.search;//intero url
var arr_url=qs.split("?");

var query=arr_url[1];//parte dopo il punto interrogativo

var arr_el=query.split("&");

var el1=arr_el[0];//multiFormatSample.xml
var el2=arr_el[1];//MultiFormatTemperatureHandler
var el3=arr_el[2];//light