javascript - IE8 - "is null or not an object" error -

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i have html:

 <td style="vertical-align: bottom;"><div id="resultcount">n.v.</div></td>

and javascript:

 function processresultcount(data) {     $("#resultcount").html(formatnumber(data.resultcount, "."));     $("#resultcount2").html(formatnumber(data.resultcount, "."));     (property in data) {         var value = data[property];         $("#" + property).html(formatnumber(value, "."));     }  function formatnumber(nstr, delimiter) {     nstr += '';     x = nstr.split('.');  x1 = x[0];     x2 = x.length > 1 ? '.' + x[1] : '';     var rgx = /(\d+)(\d{3})/;     ..... ......

in ie8, error: "resultcount null or not object"

i call function processresultcount here:

var jsonformoptions = {     // datatype identifies expected content type of server response     datatype: 'json',     // success identifies function invoke when server response     // has been received     success: processresultcount(),     error: handleresultcounterror,     // overridden in setupextsearchformbindings()     url: jsonformurl,     type: 'get' }

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