Advanced search checkboxes

You mean more than 2 columns? You can create custom filter template for the field based on the current checkbox.php.

I'm trying to modify it but how do you change this so it will display 4 spans in div

<?php if($key % 2 == 0):?>
    <div class="row-fluid">
<?php endif;?>

<?php
$i = 0;
foreach($this->values as $key => $value) :
    if (!$value->field_value)
        continue;
    $label = $this->_getVal($value->field_value);
    ?>
    <?php if($key % 4 == 0):?>
        <?php if($i > 0):?>
            </div>
        <?php endif;?>
        <div class="row-fluid">
    <?php endif;?>
    <div class="span3">
        <label class="checkbox">
            <input type="checkbox" name="filters[<?php echo $this->key;?>][value][]" value="<?php echo htmlspecialchars($value->field_value);?>" 
                <?php echo (in_array($value->field_value, $default) ? ' checked="checked"' : NULL);?>> 
            <?php echo $label;?>
            <span class="badge"><?php echo ($this->params->get('params.filter_show_number', 1) ? $value->num : NULL);?></span>
        </label>
    </div>
<?php $i++; endforeach; ?>
</div>

Thank you. Works great!