javascript - Java script submit form countdown no reset if refresh -

<button type="submit" class="submitbtn"  id="submit" disabled="disabled" name="submit"  >submit form</button> <p id="timeleft"> can send form again after: 86400 seconds </p>   </div>    </form>   </div>  <script type="text/javascript">         settimeout (function(){         document.getelementbyid('submit').disabled = null;         },86400000);          var countdownnum = 86400;         inctimer();          function inctimer(){         settimeout (function(){             if(countdownnum != 0){             countdownnum--;             document.getelementbyid('timeleft').innerhtml = 'you can send form again after: ' + countdownnum + ' seconds&nbsp;&nbsp;' + '(24hours)';             inctimer();             } else {             document.getelementbyid('timeleft').innerhtml = 'you can make result again!';             }         },1000);         }     </script> 

this javacode, if refersh page, countdown refresh..this submit form disabled , submit again after 24hours (86,400 secs)

you can use localstorage if want save variable

// put object storage when ever change localstorage.setitem('countdownnum', countdownnum);  // retrieve object storage when @ starting var retrievedobject = localstorage.getitem('countdownnum'); if(!retrievedobject){   retrievedobject= 86400; } 

edit: can change code https://jsfiddle.net/ammar08429/v0pafq0s/2/

and use setinterval instead of call timeout every second can see example in above link