Get All URL Parameters

url-var.js

  // Check each URL parameter
  function GetURLParameter(sParam)
  {
    var sPageURL = window.location.search.substring(1);
    var sURLVariables = sPageURL.split('&');
    for (var i = 0; i < sURLVariables.length; i++) 
    {
      var sParameterName = sURLVariables[i].split('=');
      if (sParameterName[0] == sParam) 
      {
          return sParameterName[1];
      }
    }
  }
  // Set each URL paramater variable
  var refrr = GetURLParameter('refrr'); // where refrr is example paramater