I'm looking for a file containing the javascript function called in the following file from Magento 1.4.1.1. I would like to add custom codes.
var\www\app\design\frontend\interface_lpf_fr\theme_lpf\template\bundle\catalog\product\view\type\bundle\option\select.phtml
...
<select onchange="bundle.changeSelection(this)" id="bundle-option-<?php echo $_option->getId() ?>" name="bundle_option[<?php echo $_option->getId() ?>]" class="bundle-option-<?php echo $_option->getId() ?><?php if ($_option->getRequired()) echo ' required-entry' ?> bundle-option-select">
<option value=""><?php echo $this->__('Choose a selection...') ?></option>
<?php $i=0; ?>
<?php foreach($_selections as $_selection): ?>
<option value="<?php echo $_selection->getSelectionId() ?>"<?php echo ($_selection->getIsDefault() && $_selection->isSaleable())?' selected="selected" ':'' ?><?php echo !$_selection->isSaleable()?' disabled="disabled" ':'' ?>><?php echo $this->getSelectionTitlePrice($_selection, false) ?></option>
<?php endforeach;?>
</select>
...