using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Collections.Specialized;
 
namespace WebControls
{
    /// <summary>

function getQueryStringParams( query ) {
   var Params = {};
   if ( ! query ) {return Params;}// return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) {continue;}
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');

/// <summary>
/// Allows setting of a value in a UrlEncoded string. If the key doesn't exist
/// a new one is set, if it exists it's replaced with the new value.
/// </summary>
/// <param name="urlEncoded">A UrlEncoded string of key value pairs</param>
/// <param name="key"></param>
/// <param name="value"></param>
/// <returns></returns>
public static string SetUrlEncodedKey(string urlEncoded, string key, string value)
{