[dw-free] jQuery contexthover - '$parent.attr("href")' [undefined] is not an object.

[fu]

[commit: http://hg.dwscoalition.org/dw-free/rev/bb0367f4a854]

http://bugs.dwscoalition.org/show_bug.cgi?id=3696

Sometimes there's no href tag, such as when we're in the entry title. So fix
the logic around that.

Patch by fu.

Files modified:

• htdocs/js/jquery.contextualhover.js

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diff -r 32574be403a3 -r bb0367f4a854 htdocs/js/jquery.contextualhover.js
--- a/htdocs/js/jquery.contextualhover.js	Sat May 21 00:08:18 2011 +0800
+++ b/htdocs/js/jquery.contextualhover.js	Mon May 23 15:32:26 2011 +0800
@@ -20,10 +20,10 @@
             // if the parent (a tag with link to userinfo) has userid in its URL, then
             // this is an openid user icon and we should use the userid
             var $head = $(this);
-            var $parent = $head.parent("a[href]");
+            var href = $head.parent("a").attr("href");
             var data = {};
             var userid;
-            if (userid = $parent.attr("href").match(/\?userid=(\d+)/i))
+            if (href && (userid = href.match(/\?userid=(\d+)/i)))
                 data.userid = userid[1];
             else
                 data.username = $usertag.attr("lj:user");
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