title: To prevent user from enabling button using inspect element
body: <p>We are using a submit button in a timesheet which gets disabled once the month is finished. User cannot submit on next month.
  <strong>Problem</strong> some user go to inspect element and remove disabled and submit the form.</p>
  
  <pre><code>&lt;a id="submit_time_sheet_id" href="javascript:void(0);" 
    onclick="isAllDaysPunched()" class="btn btn-xs btn-primary" 
    disabled="disabled"&gt;FinalSubmit&lt;/a&gt;
  </code></pre>
  
  <p>User removes  <strong>disabled="disabled"</strong> and form gets submitted.How to prevent user from modifying code  </p>