javascript - "Submit is not a function" error in Firefox and works fine in IE -


i getting "submit not function" error in firefox below code. tried document.getelementbyid("editinvnotesform").submit(); , document.forms[0].submit(); etc . using getelementbyid not give error updated value of form not submitted.i appreciate help.

  <input type="submit" value='<liferay-ui:message key="btn.save" />' onclick="return validatenotes(this)" onmouseover="this.classname='clsbluebuttonover'" onmouseout="this.classname='clsbluebutton'" class="clsbluebutton" />&nbsp;&nbsp;&nbsp;&nbsp;                                             </td>       <script type="javascript">                             function validatenotes(savebutton)              {                  if(document.getelementbyid('notetext${itemnotevo.noteno}').value<=0 ){                     alert(liferay.language.get('msg.enter-report-note'));                     document.getelementbyid('notetext${itemnotevo.noteno}').focus();                     return false;                 }                   if (document.getelementbyid('notetext${itemnotevo.noteno}').value.search(/[<>]+/) != -1) {                                   alert(liferay.language.get('msg.angle-brackets-not-allowed'));                     document.getelementbyid('notetext${itemnotevo.noteno}').focus();                     return false;                 }                 savebutton.disabled=true;                 savebutton.classname='clsbluebutton';                  document.editinvnotesform.submit();                   return true;             }              </script>


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