How to create currency links without a shortcode?

Sometimes customer want to create currency links without a shortcode and place them into his site header.php. Or smth another... But if to place link simply as: <a href="/?currency=USD">USD</a> - it will redirect user to the main page - what is not convenient. In such case JavaScript can help you!

• Drop links with the currencies you are need into the place you are need (header.php), example:
  <a href="#" data-currency="USD" class="wpcs_currency_link">USD</a>
  <a href="#" data-currency="EUR" class="wpcs_currency_link">EUR</a>
  <a href="#" data-currency="GBP" class="wpcs_currency_link">GBP</a>
• Somewhere in your theme.js or in the footer.php drop the next js code:
  

  jQuery(function () {
   jQuery('.wpcs_curr_link').click(function () {
      window.location.href = location.protocol + '//' + location.host + location.pathname + '?currency=' + jQuery(this).data('currency');
   });
  });