add external javascript in magento xml

An exmaple how to add external js script on magento pages in xml file

In cms.xml file for your template
place code


<default>
<reference name="head">
<block type="core/text" name="script.name">
<action method="setText"><text><![CDATA[<script src="script_path"></script>]]></text></action>
</block>
</reference>
</default>