dlls/mshtml/tests/exectest.html

<html>
<body>
Script execution test
<div id="b1"></div>
<div id="b2"></div>
<div id="b3"></div>
<script>
function ok(b, msg) {
    return external.ok(b, msg);
}

var executed = false;
var len = document.getElementsByTagName('div').length;
ok(len === 3, "init length = " + len);

document.write("<script>"
    + "var len = document.getElementsByTagName('div').length;"
    + "ok(len === 3, 'unexpected length ' + len);"
    + "executed = true;"
    + "<" + "/script>");

len = document.getElementsByTagName('script').length;
ok(len === 2, "script col length = " + len);
ok(executed, "written script not executed");

external.reportSuccess();
</script>
<div id="a1"></div>
<div id="a2"></div>
<div id="b3"></div>
</body>
</html>