/* Client-side access to querystring name=value pairs
	Version 1.3
	28 May 2008

	License (Simplified BSD):
	http://adamv.com/dev/javascript/qslicense.txt
*/
function getQuerystring(key, default_)
{
  if (default_==null) default_="";
  key = key.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regex = new RegExp("[\\?&]"+key+"=([^&#]*)");
  var qs = regex.exec(window.location.href);

  if(qs == null)
    return default_;
  else
    return qs[1];
}