You can have invisible footer page in this way
Open templates/ja_mitius/tpls/blocks/footer.php file
from
<div class="span4<?php $this->_c('head-search', array('tablet' => 'span6', 'xtablet' => 'span6'))?>">
<div class="head-search">
<jdoc:include type="modules" name="<?php $this->_p('head-search') ?>" style="raw" />
</div>
<div class="<?php $this->_c('social')?>">
<jdoc:include type="modules" name="<?php $this->_p('social') ?>" style="raw" />
</div>
</div>
Change to
<div class="span4<?php $this->_c('head-search', array('tablet' => 'span6', 'xtablet' => 'span6'))?>">
</div>
Let me know if it helps