<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=555567 --> <head> <title>Test for Bug 555567</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=555567">Mozilla Bug 555567</a> <div id='content' style="display: none"> <form> <fieldset> <legend id="a"></legend> </fieldset> <legend id="b"></legend> </form> <legend id="c"></legend> </div> <pre id="test"> <p id="display"></p> <script type="application/javascript"> /** Test for Bug 555567 **/ var a = document.getElementById('a'); var b = document.getElementById('b'); var c = document.getElementById('c'); isnot(a.form, null, "First legend element should have a not null form IDL attribute"); is(b.form, null, "Second legend element should have a null form IDL attribute"); is(c.form, null, "Third legend element should have a null form IDL attribute"); </script> </pre> </body> </html>