javascript - Place holder is not working -

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place holder not working in ie-9,so used below code place holder.

 jquery(function () {      debugger;      jquery.support.placeholder = false;      test = document.createelement('input');      if ('placeholder' in test) jquery.support.placeholder = true;  });  // adds placeholder support browsers wouldn't otherwise support it.  $(function () {       if (!$.support.placeholder) {          var active = document.activeelement;          $(':text').focus(function () {              if ($(this).attr('placeholder') != '' && $(this).val() == $(this).attr('placeholder')) {                  $(this).val('').removeclass('hasplaceholder');              }          }).blur(function () {              if ($(this).attr('placeholder') != '' && ($(this).val() == '' || $(this).val() == $(this).attr('placeholder'))) {                  $(this).val($(this).attr('placeholder')).addclass('hasplaceholder');              }          });          $(':text').blur();          $(active).focus();          $('form:eq(0)').submit(function () {              $(':text.hasplaceholder').val('');          });      }  });

when taking value of test,it shows null.how can details of input tag?

i think 

if ($.browser.msie) {                     $("input").each(function () {                         if (isnull($(this).val()) && $(this).attr("placeholder") != "") {                             $(this).val($(this).attr("placeholder")).addclass('hasplaceholder');                             $(this).keypress(function () {                                 if ($(this).hasclass('hasplaceholder')) $(this).val("").removeclass('hasplaceholder');                             });                             $(this).blur(function () {                                 if ($(this).val() == "") $(this).val($(this).attr("placeholder")).addclass('hasplaceholder');                             });                         }                     });                 }

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