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<html> <head> <title> New Document </title> <meta http-equiv="Content-Type" content="text/html; charset=GBK" /> <script type="text/javascript"> function change (){ var sel = document.getElementById('sel'); sel.options[0].value = 111; sel.options[0].text = 111; } </script> </head> <body> <select id="sel" style="width:100px;"> <option value="1">1</option> </select> <a href="javascript:change();">UPDATE</a> </body> </html>