function URLDecode(URLString) {
var re = /\+/g;

  // Return the decoded string
  return unescape(String(URLString).replace(re, " ")); 
}

var queryString = unescape(location.search.substring(1));
var queryArray = new Array();
  
if (queryString){
  var nameValuePairs = queryString.split("&");
  var nameValue = new Array();
  
  for (idx = 0; idx < nameValuePairs.length; idx++){
    nameValue = nameValuePairs[idx].split("=");
    queryArray[ URLDecode(nameValue[0])]= nameValue[1];
  }
}