Фильтр 3.0.1 пути преобразования - Разработки и улучшения

        <div class="filter_characteristic">
        <?php foreach($characteristic_displayfields as $ch_id){?>   
            <div class="characteristic_name"><?php print $characteristic_fields[$ch_id]->name;?></div>
            <input type="hidden" name="extra_fields[<?php print $ch_id?>][]" value="0" />
            <?php if (is_array($characteristic_fieldvalues[$ch_id])){?>
                <?php foreach($characteristic_fieldvalues[$ch_id] as $val_id=>$val_name){?>
                    <input type="checkbox" name="extra_fields[<?php print $ch_id?>][]" value="<?php print $val_id;?>" <?php if (is_array($extra_fields_active[$ch_id]) && in_array($val_id, $extra_fields_active[$ch_id])) print "checked";?> onclick="document.jshop_filters.submit();" /> <?php print $val_name;?><br/>
               <?php }?>
            <?php }?>
            <br/>
        <?php }?>
        </div>

           	
<select multiple name="extra_fields[<?php print $ch_id?>][]">
   <?php foreach($characteristic_fieldvalues[$ch_id] as $val_id=>$val_name){?>
      <option class="<?php print $ch_id?>" type="checkbox"  value="<?php print $val_id;?>" <?php if (is_array($extra_fields_active[$ch_id]) && in_array($val_id, extra_fields_active[$ch_id])) print "checked";?>  /> <?php print $val_name;?></option><br/>
   <?php }?>
</select>