Fetching URL Parameter with JavaScript

With this code you can fetch all parameters from the URL. The function will return a map with all key & value pairs.

function get_url_parameters(){
  query = window.location.search.substring(1)
  vars = query.split("&");
  hash = new Array()
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    hash[pair[0]] = pair[1]
  }
  return hash
}