Remember text in input via jQuery Cookie

I'm using jQuery Cookie plugin. And I want, when I write text a input, remember this text next sessions.

  $(".webform-submit").click(function () {
    $.cookie('telCookie', $telephoneCookie.val(), {
      expires: 365
    });
  });

  //set the value of the cookie to the element element_1
  var $telephoneCookie = $("#edit-submitted-telefon").val($.cookie("telCookie"))

HTML:

<input type="text" id="edit-submitted-telefon" name="submitted[telefon]" step="any" class="form-text form-number required">

But value has not my text, so this input get undefined

How can I fix it? Thanks.