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<!DOCTYPE html>
<script>
function submitForm()
{
document.forms[0].submit();
}
function fillForm(data)
{
document.getElementsByName("foo")[0].value = data;
}
function getFormData()
{
return document.getElementsByName("foo")[0].value;
}
document.addEventListener("visibilitychange", function(event) {
// Send a signal to the test controller via alert.
alert('visibilitychange');
});
</script>
<form method=post>
<input name=foo value="Some unimportant data">
<input type=submit>
</form>
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