<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=548828 --> <head> <title>Test for Bug 548828</title> <script type="text/javascript" src="/MochiKit/MochiKit.js"></script> <script type="text/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=548828">Mozilla Bug 548828</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script class="testbody" type="text/javascript"> /** Test for Bug 548828 **/ var head = document.getElementsByTagName("head")[0]; is(document.head, head, "document.head and document.getElementsByTagName(\"head\")[0] should match"); document.head = ""; is(document.head, head, "document.head reassigned"); document.head = document.createElement("head"); is(document.head, head, "new element created with the name \"head\""); document.documentElement.appendChild(document.createElement("head")); is(document.head, head, "new child named head appended to document"); var head2 = document.createElement("head"); document.documentElement.insertBefore(head2, head); is(document.head, head2, "new head inserted before existing head"); </script> </pre> </body> </html>