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<!DOCTYPE HTML>
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<html>
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<body onload="doTest()">
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<iframe id="f" src="1242172-1-subdoc.html" style="width:800px; height:100px; border:1px solid black"></iframe>
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<script>
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function doTest() {
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f.contentDocument.body.offsetTop;
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f.style.height = "200px";
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}
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</script>
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</body>
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</html>
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