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| 点击左侧选项选入右侧选择框 |
| 来源：中国站长天空 更新时间：2009/12/3 1:50:47 阅读次数： 我要投稿 |
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<html>
<head>
<title>点击左侧选项选入右侧选择框</title>
<meta http-equiv="content-Type" content="text/html;charset=gb2312">
</head>
<body>
<!--把下面代码加到<body>与</body>之间-->
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function moveOver()
{
var boxLength = document.choiceForm.choiceBox.length;
var selectedItem = document.choiceForm.available.selectedIndex;
var selectedText = document.choiceForm.available.options[selectedItem].text;
var selectedValue = document.choiceForm.available.options[selectedItem].value;
var i;
var isNew = true;
if (boxLength != 0) {
for (i = 0; i < boxLength; i++) {
thisitem = document.choiceForm.choiceBox.options[i].text;
if (thisitem == selectedText) {
isNew = false;
break;
}
}
}
if (isNew) {
newoption = new Option(selectedText, selectedValue, false, false);
document.choiceForm.choiceBox.options[boxLength] = newoption;
}
document.choiceForm.available.selectedIndex=-1;
}
function removeMe() {
var boxLength = document.choiceForm.choiceBox.length;
arrSelected = new Array();
var count = 0;
for (i = 0; i < boxLength; i++) {
if (document.choiceForm.choiceBox.options[i].selected) {
arrSelected[count] = document.choiceForm.choiceBox.options[i].value;
}
count++;
}
var x;
for (i = 0; i < boxLength; i++) {
for (x = 0; x < arrSelected.length; x++) {
if (document.choiceForm.choiceBox.options[i].value == arrSelected[x]) {
document.choiceForm.choiceBox.options[i] = null;
}
}
boxLength = document.choiceForm.choiceBox.length;
}
}
function saveMe() {
var strValues = "";
var boxLength = document.choiceForm.choiceBox.length;
var count = 0;
if (boxLength != 0) {
for (i = 0; i < boxLength; i++) {
if (count == 0) {
strValues = document.choiceForm.choiceBox.options[i].value;
}
else {
strValues = strValues + "," + document.choiceForm.choiceBox.options[i].value;
}
count++;
}
}
if (strValues.length == 0) {
alert("您没有选择任何内容");
}
else {
alert("您选择的内容如下:\r\n"+"第" + strValues+"条");
}
}
// End -->
</script>
<form name="choiceForm">
<table border=0>
<tr>
<td valign="top" width=175>
<div align="center">可选内容:<br>
<select name="available" size=10 onchange="moveOver();">
<option value="1">内容一</option>
<option value="2">内容二</option>
<option value="3">内容三</option>
<option value="4">内容四</option>
<option value="5">内容五</option>
<option value="6">内容六</option>
<option value="7">内容七</option>
<option value="8">内容八</option>
<option value="9">内容九</option>
<option value="10">内容十</option>
</select>
</div>
</td>
<td valign="top">
<div align="center">你的选择:<br>
<select multiple name="choiceBox" style="width:150;" size="10">
</select>
</div>
</td>
</tr>
<tr>
<td colspan=2 height=10>
<div align="center">
<input type="button" value="删除" onclick="removeMe();">
<input type="button" value="结果" onclick="saveMe();">
</div>
</td>
</tr>
</table>
</form>
</body>
</html> |
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