Manage Subscriptions Error

<script type="text/javascript">

//jQuery

jQuery(document).ready(function($) {

  var getUrlParameter = function getUrlParameter(sParam) {
      var sPageURL = decodeURIComponent(window.location.search.substring(1)),
          sURLVariables = sPageURL.split('&'),
          sParameterName,
          i;

      for (i = 0; i < sURLVariables.length; i++) {
          sParameterName = sURLVariables[i].split('=');

          if (sParameterName[0] === sParam) {
              return sParameterName[1] === undefined ? true : sParameterName[1];
          }
      }
  };

  var errorcode = getUrlParameter('errorcode');
  var errorcontrol = getUrlParameter('errorControl');

  switch(errorcode) {
    case "1":
        var strError = "An error has occurred while attempting to save your subscriber information.";
        break;
    case "2":
        var strError = "The list provided does not exist.";
        break;
    case "3":
        var strError = "Information was not provided for a mandatory field. " + errorcontrol;
        break;
    case "4":
        var strError = "Invalid information was provided. " + errorcontrol;
        break;
    case "5":
        var strError = "Information provided is not unique. " + errorcontrol;
        break;
    case "6":
        var strError = "An error has occurred while attempting to save your subscriber information.";
        break;  
    case "7":
        var strError = "An error has occurred while attempting to save your subscriber information.";
        break;
    case "8":
        var strError = "The email address you are attempting to subscribe already exists in one or more of your choices. Please try again.";
        break;
    case "9":
        var strError = "An error has occurred while attempting to save your subscriber information.";
        break;
    case "10":
        var strError = "An error has occurred while attempting to save your subscriber information.";
        break;  
    case "12":
        var strError = "The subscriber you are attempting to insert is on the master unsubscribe list or the global unsubscribe list.";
        break;                            
    default:
        var strError = "Other.";
        break; 
  }

  //console.log(strError);
  $("#erroMsg").html(strError).css("color","red").css("fontSize","16px").css("fontWeight","bold").show();

});

//jQuery

</script>

<div id="erroMsg"></div>