Why can't I change the type of an input element to submit?

Question

I\'m calling this function:

function submit_button(button_id){
    $(\'#\' + button_id).attr(\'type\', \'submit\');
}

to make this button t

Answer 1

javascript:

function submit_button(){

      var btn=document.getElementById('button_id');
      btn.setAttribute('type', 'submit');

  }

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Jquery:

function submit_button(){

 $('#' + button_id).prop('type', 'submit');

   }

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