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<HTML>
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<HEAD><TITLE>a example</TITLE>
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<SCRIPT LANGUAGE="VBScript">
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<!--
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Sub Button1_OnClick
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txt1.readonly=false
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End Sub
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-->
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</SCRIPT>
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</HEAD>
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<BODY>
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<INPUT id="Button1" TYPE="BUTTON" VALUE="clickme">
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<input id="txt1" type="text" value="aaaaa" readonly="true">
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</BODY>
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</HTML>
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