The scripts posted there by ikegami and tye seem redundant by now. I suspect the root node link on every sub-node came after that(!?), maybe inspired by that node.

Read ikegami's reply again. It is titled Free Nodelet Hack: Add parent & root links to nodes in 'Nodes You Wrote'. There. Nodes You Wrote. Which means it is for Super Search.

update: tye's code completed with XPath expressions to rewrite links in Perl Monks User Search:

<script type="text/javaScript">
// <!--
function xq (query) {
    return document.evaluate(query,document,null,XPathResult.ORDERED_N
+ODE_SNAPSHOT_TYPE,null);
}

function xl (query) {
    var r = xq(query);
    var a = new Array;
    for ( var i=0 ; i < r.snapshotLength; i++ ) a.push(r.snapshotItem(
+i));
    return a;
}

if (xl("//body[@id='id-6364']")[0]) {
    // only for super search
    var list = xl("/html/body[@id='id-6364']/center/table/tbody/tr/td[
+1]/table[@id='writeups']/tbody/tr/td[2]/a");
    for (var i in list) {
        var link = list[i];
        var container = document.createElement('span');
        container.innerHTML = ( ''
            + '<a href="' + link.href + ';_redir=root">r</a>'
            + ' '
            + '<a href="' + link.href + ';_redir=parent">p</a>'
            + '&nbsp;&nbsp;' );
        link.parentNode.insertBefore(container, link);
    }
}
var params= window.location.search;
if(  0 <= params.indexOf( ";_redir=root" )  ) {
    window.location.search= "?node_id=`root_id`";
} else if(  0 <= params.indexOf( ";_redir=parent" )  ) {
    window.location.search= "?node_id=`parent_id`";
} else if(  0 <= params.indexOf( ";_redir=author" )  ) {
    window.location.search= "?node_id=`author_id`";
}
--></script>
[download]

That still loads your node first, but redirects it to its parent or root node, after loading, which saves you a click.

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}