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Test Info:

<!-- Needs to be in quirks mode -->
<html>
<head>
<script>
try { o1 = document.createElement('frameset') } catch(e) { }
try { o2 = document.createElement('body') } catch(e) { }
try { o2.style.overflow = 'auto'; } catch (e) {}
try { document.documentElement.appendChild(o1) } catch(e) { }
try { document.documentElement.appendChild(o2) } catch(e) { }
try { o2.scrollLeft } catch(e) { }
</script>
</head>
</html>