[Typo3-dev] piVars need a little help

[wengrzik at ewr.de]

Hi!

At first, is there anywhere a documentation about useage of piVars or a 
little how-to?

I want to get the pivar out of this code

<td>
<select class="login" name="###FORM_SEARCH_GENDER###" size="1">
   <option value="1" selected="selected">male</option>
   <option value="2">female</option>
</select>
</td>


In the backend i want to get the value into to my php file.

Thanks for any help!!
sorry for such a newbee question.... :/