The body top tag is not a self-closing tag. The content placed between the
opening and closing of this tag is moved to the top of the body tag. When
something is passed using this taglib, the
body_top.jsp
is passed markup and outputs in this JSP.
This tag also has an optional outputKey attribute. If several portlets
on the page include the same resource with this tag, you can specify the same
outputKey value for each tag so the resource is only loaded once.
The example configuration below uses the <liferay-util:body-top> tag to
include JavaScript provided by the portlet’s bundle:
<liferay-util:body-top outputKey="bodytop" >
<script
src="/o/my-liferay-util-portlet/js/my_custom_javascript_body_top.js"
type="text/javascript"></script>
</liferay-util:body-top>
Now you know how to use the <liferay-util:body-top> tag to include additional
resources in the top of the page’s body.
Related Topics
Using the Liferay Util HTML Body Bottom Tag