[TYPO3-templavoila] build link from selector box

[Bartosz Aninowski]

Hi.
I have simple FCE with one selector box.

<numIndex index="0" type="array">
  <numIndex index="0">0</numIndex>
  <numIndex index="1">0</numIndex>
</numIndex>
<numIndex index="1" type="array">
  <numIndex index="0">Best movies</numIndex>
  <numIndex index="1">best</numIndex>
</numIndex>

What I want is to build link like this
<a href=?&what= numIndex index="1" > numIndex index="0" </a>

Is it possible and how?