how to make a button pressed by default in html or javascript

Question

There I have a button that is hidden from the user but want it to be clicked by default like with a check box if you want it to be checked by default you add the checked attribute is there any way you could do the same thing with a button here is my code

<input id="submit" type="hidden" value="Reverse Geocode" autofocus> 

Answer 1

You can do as following:

<script type="text/javascript">
document.getElementById("submit").click();
</script>

Answer 2

May be you can do the following:

document.getElementById('chkTest').addEventListener('click', function(){
  if(this.checked)
    document.getElementById('submit').click();
});

document.getElementById('submit').addEventListener('click', function(){
  alert('button clicked');
});

<input id="submit" type="hidden" value="Reverse Geocode" autofocus />

<input type="checkbox" id="chkTest" /> Check To Click The Button