Magento :: Translate text from javascript files
Just use the following method in your scripts:
Translator.translate('Some phrase');
You can do it in a template file yourfile.phtml. The JavaScript js/mage/translate.js
file must be included in your HTML header (Magento does it by default).
<script type="text/javascript">
Translator.add('You should take care of this confirmation message!','<?php echo Mage::helper('yourmodule')->__('You should take care of this confirmation message!')?>');
</script>
Since Magento 1.7, you can add a file jstranslator.xml into your module under the etc/ folder and set the following string like that:
<jstranslator>
<!-- validation.js -->
<validate-no-html-tags translate="message" module="core">
<message>HTML tags are not allowed</message>
</validate-no-html-tags>
<validate-select translate="message" module="core">
<message>Please select an option.</message>
</validate-select>
</jstranslator>
Then translate the string as you do it for PHP thanks to the CSV file. This will add the translation to the JavaScript code like the following var Translator = new Translate(...)
.