Remove Magento default assets
<?xml version="1.0"?>
<layout version="0.1.0">
<!-- Default handle, loaded on most pages -->
<default>
<reference name="head">
<!-- Remove Magento's default assets -->
<action method="removeItem">
<type>skin_css</type>
<name>css/print.css</name>
</action>
<action method="removeItem">
<type>skin_css</type>
<name>css/styles-ie.css</name>
</action>
<action method="removeItem">
<type>skin_css</type>
<name>css/styles.css</name>
</action>
<action method="removeItem">
<type>skin_css</type>
<name>css/widgets.css</name>
</action>
<action method="removeItem">
<type>skin_js</type>
<name>js/ie6.js</name>
</action>
<action method="removeItem">
<type>js</type>
<name>lib/ds-sleight.js</name>
</action>
<action method="removeItem">
<type>js</type>
<name>varien/menu.js</name>
</action>
<!-- Add our assets: bootstrap.min.js=>script.js ; bootstrap.min.css=>style.css -->
<action method="addCss">
<!-- this style.css contains a trimmed version of bootstrap mostly grids -->
<stylesheet>css/style.css</stylesheet>
</action>
<action method="addItem">
<!-- script.js contains bootstrap javascript files(modal, carousel ..etc -->
<type>skin_js</type>
<name>js/script.js</name>
</action>
<!-- Add additional child blocks -->
<block type="core/template" name="boilerplate.head.meta" template="boilerplate/page/html/head/meta.phtml"/>
<block type="core/template" name="boilerplate.head.ie8" template="boilerplate/page/html/head/ie8.phtml"/>
</reference>
</default>
<!--Add assets for print -->
<print>
<reference name="head">
<!-- Add our assets -->
<action method="addCss">
<stylesheet>css/style.css</stylesheet>
</action>
<action method="addItem">
<type>skin_js</type>
<name>js/script-ck.js</name>
</action>
</reference>
</print>
</layout>