JavaScript Code Improver output

File.js

(function()
{
function getScriptUrl(re)
{
  var scripts = document.getElementsByTagName('script'),
  element,
  src;
  for (var i = 0; i < scripts.length; i++)
  {
    element = scripts[i];
    src = element.getAttribute ?
    element.getAttribute('src') : el.src;
    if (src && re.test(src))
    {
      return src;
    }
  }
  return null;
}
function getQueryParameters(query)
{
  var args = query.split('&'),
  params =
  {
  }
  ,
  pair,
  key,
  value;
function decode(string)
{
  return decodeURIComponent(string || "")
  .replace('+', ' ');
}
for (var i = 0; i < args.length; i++)
{
  pair = args[i].split('=');
  key = decode(pair.shift());
  value = decode(pair ? pair[0] : null);
  params[key] = value;
}
return params;
};
var url = getScriptUrl(/^fragment\.js/);
var params = getQueryParameters(url.replace(/^.*\#/, ''));
document.getElementById('fragment-ident-out').innerHTML = JSON.stringify(params);
}
)();