Magento Removes CSS or JS from Specific View

For a JS in the main JS folder:

<reference name="head">
    <action method="removeItem"><type>js</type><name>functions.js</name></action>
</reference>

For a JS in the skin folder:

<reference name="head">
    <action method="removeItem"><type>skin_js</type><name>functions.js</name></action>
</reference>

For CSS in the skin folder:

<reference name="head">
    <action name="removeItem"><type>skin_css</type><name>local.css</name></action>
</reference>