<html>
<head>
<title>Javascript Version select drop - down menu moves and sorts </title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<p> Select one or more items and click add or remove ( Hold down the shift or ctrl You can choose more ) , or double-click on the selection to add and remove. </p>
<form method="post" name="myform">
<table border="0" width="300">
<tr>
<td width="40%">
<select style="width:100px; height:200px" multiple name="list1" size="12" ondblclick="moveOption(document.myform.list1, document.myform.list2)">
<option value=" Beijing "> Beijing </option>
<option value=" Shanghai "> Shanghai </option>
<option value=" shandong "> shandong </option>
<option value=" anhui "> anhui </option>
<option value=" chongqing "> chongqing </option>
<option value=" fujian "> fujian </option>
<option value=" gansu "> gansu </option>
<option value=" guangdong "> guangdong </option>
<option value=" guangxi "> guangxi </option>
<option value=" guizhou "> guizhou </option>
<option value=" hainan "> hainan </option>
<option value=" hebei "> hebei </option>
<option value=" heilongjiang "> heilongjiang </option>
<option value=" henan "> henan </option>
<option value=" hubei "> hubei </option>
<option value=" hunan "> hunan </option>
<option value=" Inner Mongolia "> Inner Mongolia </option>
<option value=" jiangsu "> jiangsu </option>
<option value=" jiangxi "> jiangxi </option>
<option value=" Ji Lin "> Ji Lin </option>
<option value=" liaoning "> liaoning </option>
<option value=" ningxia "> ningxia </option>
<option value=" qinghai "> qinghai </option>
<option value=" shanxi "> shanxi </option>
<option value=" shaanxi "> shaanxi </option>
<option value=" sichuan "> sichuan </option>
<option value=" tianjin "> tianjin </option>
<option value=" Tibet "> Tibet </option>
<option value=" xinjiang "> xinjiang </option>
<option value=" yunnan "> yunnan </option>
<option value=" zhejiang "> zhejiang </option>
<option value=" Hong Kong "> Hong Kong </option>
<option value=" Macau "> Macau </option>
<option value=" Taiwan "> Taiwan </option>
<option value=" other "> other </option>
</select>
</td>
<td width="20%" align="center">
<input type="button" value=">>" onclick="moveOption(document.myform.list1, document.myform.list2)"><br />
<br />
<input type="button" value="<<" onclick="moveOption(document.myform.list2, document.myform.list1)">
</td>
<td width="40%">
<select style="width:100px; height:200px" multiple name="list2" size="12" ondblclick="moveOption(document.myform.list2, document.myform.list1)">
</select>
</td>
<td>
<button onclick="changepos(list2,-1)" type="button">
Sunday afternoon </button>
<br />
<button onclick="changepos(list2,1)" type="button">
∨ </button>
</td>
</tr>
</table>
Value: <input type="text" name="city" size="40">
</form>
<script language="JavaScript">
<!--
function moveOption(e1, e2) {
try {
for (var i = 0; i < e1.options.length; i++) {
if (e1.options[i].selected) {
var e = e1.options[i];
e2.options.add(new Option(e.text, e.value));
e1.remove(i);
i = i - 1
}
}
document.myform.city.value = getvalue(document.myform.list2);
}
catch (e) { }
}
function getvalue(geto) {
var allvalue = "";
for (var i = 0; i < geto.options.length; i++) {
allvalue += geto.options[i].value + ",";
}
return allvalue;
}
function changepos(obj, index) {
if (index == -1) {
if (obj.selectedIndex > 0) {
obj.options(obj.selectedIndex).swapNode(obj.options(obj.selectedIndex - 1))
}
}
else if (index == 1) {
if (obj.selectedIndex < obj.options.length - 1) {
obj.options(obj.selectedIndex).swapNode(obj.options(obj.selectedIndex + 1))
}
}
}
//-->
</script>
</body>
</html>