<p>JS timers should be paused while a modal dialog (or alert) is displayed.</p>

<p>Please disable popup blocker for this test.</p>

<div>0</div>

<script>

function f()

{

    var d = document.getElementsByTagName("div")[0];

    d.innerHTML = parseInt(d.innerHTML) + 1;

}

var timerId = setInterval(f, 100);

alert("Numbers in main window should not increase while this alert is displayed");

showModalDialog("data:text/html,<p>Numbers in main window should not increase while this modal dialog is displayed</p>");

document.getElementsByTagName("div")[0].innerHTML = "DONE";

clearInterval(timerId);

</script>