problem with code - URL

[nspinheiro]

Hi

Hi need to add in the frontpage a link to an external website and i've added the field in the backoffice and added the following code to product.tpl

<p id="img_url"{if !$product->img_url}style="display: none;"{/if
<label for="img_url">{l s='Imagem original:'}</label>
<span class="editable"> <a href={$product->img_url|escape:'htmlall':'UTF-8'URL</a>
</span>
</p>

What happens is that in the frontage all is has i want to, but the link that should be like "www.google.com" appears like "www.mydomain.com/www.google.com

 

what am i doing wrong?

Thanks