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<table id = "aa"><tr><Td>aaa</td><td>bbbbbbb</td><td>bbbbbbb</td><td>bbbbbbb</td><td>bbbbbbb</td></tr>
<tr><Td onMouseOver="javascript:var src = window.event.srcElement; var upsrc = document.all.aa.rows[parseInt(src.parentElement.rowIndex)-1].cells[src.cellIndex];upsrc.bgColor='#F0F1FF';">over here</td><td>bbbbbbb</td><td>bbbbbbb</td><td>bbbbbbb</td><td>bbbbbbb</td></tr>
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<table id = "aa"><tr><Td>aaa</td><td>bbbbbbb</td><td>bbbbbbb</td><td>bbbbbbb</td><td>bbbbbbb</td></tr>
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>emu</title>
</head>
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<TABLE>
<TR>
<TD>aaa</TD>
<TD>bbb</TD>
<TD>ccc</TD>
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<TR>
<TD>000</TD>
<TD>111</TD>
<TD>222</TD>
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<TD>333</TD>
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<TD>555</TD>
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<TD>666</TD>
<TD>777</TD>
<TD>888</TD>
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</TABLE>
</body>
</html>