<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
  <input type="hidden" name="cmd" value="_s-xclick" />
  <input type="hidden" name="hosted_button_id" value="TEAYQMQ2MQA6Q" />
  <input type="hidden" name="currency_code" value="GBP" />
  <input type="image" src="https://www.paypalobjects.com/en_GB/i/btn/btn_buynow_SM.gif" border="0" name="submit" title="PayPal - The safer, easier way to pay online!" alt="Buy Now" />
</form>

<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
  <input type="hidden" name="cmd" value="_s-xclick" />
  <input type="hidden" name="hosted_button_id" value="TEAYQMQ2MQA6Q" />
  <input type="hidden" name="currency_code" value="GBP" />
  <input type="image" src="https://www.paypalobjects.com/en_GB/i/btn/btn_buynow_SM.gif" border="0" name="submit" title="PayPal - The safer, easier way to pay online!" alt="Buy Now" />
</form>