如何重定向到JSF中的锚点？

function jumpToAnchor(anchor) {
    window.location.href = "#" + anchor;
}

<h:commandButton value="Jump to Anchor" onclick="jumpToAnchor('anchor1')" />

<h:form>
    <p:commandButton value="Jump to Anchor" action="#{bean.jumpToAnchor}" update=":form">
        <p:scrollTo target=":form:anchor1" />
    </p:commandButton>
</h:form>

<h:commandButton value="Jump to Anchor">
    <f:ajax onevent="function(data) { if (data.status === 'success') { window.location.hash = 'anchor1'; } }" />
</h:commandButton>