If you really want to use an anchor then you have to use javascript:
<a href="#" target="_blank" rel="external nofollow" οnclick="document.forms['myFormName'].submit(); return false;">...</a>
If you really want to use an anchor then you have to use javascript:
<a href="#" target="_blank" rel="external nofollow" οnclick="document.forms['myFormName'].submit(); return false;">...</a>