$options['<img onclick="document.getElementById(\'Thumbnail_Placement1\').checked=true"  class="thumb_place_bottom" src="images/cart/thumb_placement_bottom.png" alt="bottom" title="bottom" />'] = 'bottom';
$options['<img onclick="document.getElementById(\'Thumbnail_Placement2\').checked=true" class="thumb_place_left" src="images/cart/thumb_placement_left.png" alt="left" title="left" />'] = 'left';
$options['<img onclick="document.getElementById(\'Thumbnail_Placement3\').checked=true"  class="thumb_place_right"  src="images/cart/thumb_placement_right.png" alt="right" title="right" />'] = 'right';
$options['<img onclick="document.getElementById(\'Thumbnail_Placement4\').checked=true" class="thumb_place_top"  src="images/cart/thumb_placement_top.png" alt="top" title="top" />'] = 'top';
