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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新网页 1</title>
<meta name="GENERATOR" content="Microsoft FrontPage 3.0">
<script langugae="javascript">
function copysel()
{
for(i=0;i<tfrm.D2.options.length;i++){
if(tfrm.D1.value!=tfrm.D2.options[i].value)
var oOption = document.createElement("OPTION");
tfrm.D2.options.add(oOption);
oOption.value = tfrm.D1.value;
oOption.innerText =tfrm.D1.options[tfrm.D1.selectedIndex].value;
}
}
function delsel()
{
tfrm.D2.options.remove(tfrm.D2.selectedIndex);
}
</script>
</head>
<body>
<form method="POST" name="tfrm">
<p><select name="D1" size="5" multiple ondblclick="copysel()">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
<select name="D2" size="5" multiple ondblclick="alert(D2.value)">
</select></p>
<p><input type="button" value="Copy" name="B1" onclick="copysel()"> <input type="button" value="Delete" name="B2" onclick="delsel()"></p>
</form>
</body>
</html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新网页 1</title>
<meta name="GENERATOR" content="Microsoft FrontPage 3.0">
<script langugae="javascript">
function copysel()
{
for(i=0;i<tfrm.D2.options.length;i++){
if(tfrm.D1.value!=tfrm.D2.options[i].value)
var oOption = document.createElement("OPTION");
tfrm.D2.options.add(oOption);
oOption.value = tfrm.D1.value;
oOption.innerText =tfrm.D1.options[tfrm.D1.selectedIndex].value;
}
}
function delsel()
{
tfrm.D2.options.remove(tfrm.D2.selectedIndex);
}
</script>
</head>
<body>
<form method="POST" name="tfrm">
<p><select name="D1" size="5" multiple ondblclick="copysel()">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
<select name="D2" size="5" multiple ondblclick="alert(D2.value)">
</select></p>
<p><input type="button" value="Copy" name="B1" onclick="copysel()"> <input type="button" value="Delete" name="B2" onclick="delsel()"></p>
</form>
</body>
</html>
...全文
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