javascript function not working in Firefox and Safari (just in Chrome) -


i have page other javascripts correctly working... apart one:

<script> function add(numdaystoadd) {     var data_in = new date (document.wadainsertform.data_in.value);     var data_out = data_in.setdate(data_in.getdate()+numdaystoadd);     var final_day = data_out.getdate();     var final_month = data_out.getmonth() + 1;     var final_year = data_out.getfullyear();      document.wadainsertform.data_out.value = final_year+'-'+final_month+'-'+final_day;      } </script>

this script triggered "onchange" call on checkbox "onclick" event. clarify:

<input type="checkbox" name="product" value="insurance plan: 1 month" id="product" onclick="this.form.price.value='41.40'" onchange="add(+30)">

when test page in chrome homeworks: insert price value in "price" field , update "data_out" field proper value.

when same in firefox , safari... works "price" setting.

any suggestions or help? lot in advance

michele

onchange="add(+30)"

here +30 doesn't represent string or integer in script through type error, add days current date use script

<script type="text/javascript" language="javascript">     function adddays(toadd) {         if (!toadd || toadd == '' || isnan(toadd)) return;         var d = new date();         d.setdate(d.getdate() + parseint(toadd));          document.getelementbyid("result").innerhtml = d.getdate() + "/" + d.getmonth() + "/" + d.getfullyear();     } </script> ---------------------- ui ---------------     <div id="result">     </div>     <input type="text" value="0" onkeyup="adddays(this.value);" />

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